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74HC21
Dual 4-input AND gate
Rev. 05 -- 7 May 2009 Product data sheet
1. General description
The 74HC21 is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). The 74HC21 provide the 4-input AND function.
2. Features
I Low-power dissipation I Complies with JEDEC standard no. 7A I ESD protection: N HBM JESD22-A114E exceeds 2000 V N MM JESD22-A115-A exceeds 200 V I Multiple package options I Specified from -40 C to +80 C and from -40 C to +125 C.
3. Ordering information
Table 1. Ordering information Package Temperature range 74HC21N 74HC21D 74HC21DB 74HC21PW -40 C to +125 C -40 C to +125 C -40 C to +125 C -40 C to +125 C Name DIP14 SO14 SSOP14 TSSOP14 Description plastic dual in-line package; 14 leads (300 mil) plastic small outline package; 14 leads; body width 3.9 mm plastic shrink small outline package; 14 leads; body width 5.3 mm plastic thin shrink small outline package; 14 leads; body width 4.4 mm Version SOT27-1 SOT108-1 SOT337-1 SOT402-1 Type number
NXP Semiconductors
74HC21
Dual 4-input AND gate
4. Functional diagram
1 2 4 5 9 10 12 13
1A 1B 1C 1D 2A 2B 2C 2D
001aab975
1Y
1 6 2 4 5 9 8 10 12 13
1A 1B 1C 1D 2A 2B 2C 2D
001aab973
1Y
6
2Y
2Y
8
Fig 1.
Functional diagram
Fig 2.
Logic symbol
1 2 4 5
& 6
A
B
9 10 12 13
001aab974
& 8
Y C
D
001aab976
Fig 3.
IEC Logic symbol
Fig 4.
Logic diagram
5. Pinning information
5.1 Pinning
74HC21
1A 1B n.c. 1C 1D 1Y GND 1 2 3 4 5 6 7
001aab972
14 VCC 13 2D 12 2C 11 n.c. 10 2B 9 8 2A 2Y 1A 1B n.c. 1C 1D 1Y GND 1 2 3 4 5 6 7
001aai659
74HC21
14 VCC 13 2D 12 2C 11 n.c. 10 2B 9 8 2A 2Y
Fig 5.
Pin configuration SOT27-1 and SOT108-1
Fig 6.
Pin configuration SOT337-1 and SOT402-1
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
2 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
5.2 Pin description
Table 2. Symbol 1A, 1B, 1C, 1D n.c. 1Y GND 2Y 2A, 2B, 2C, 2D VCC Pin description Pin 1, 2, 4, 5 3, 11 6 7 8 9, 10, 12, 13 14 Description data input not connected data output ground (0 V) data output data input supply voltage
6. Functional description
Table 3. Input nA L X X X H
[1]
Function table[1] Output nB X L X X H nC X X L X H nD X X X L H nY L L L L H
H = HIGH voltage level; L = LOW voltage level; X = don't care.
7. Limiting values
Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). Symbol VCC IIK IOK IO ICC IGND Tstg Ptot Parameter supply voltage input clamping current output clamping current output current supply current ground current storage temperature total power dissipation DIP14 package SO14 and (T)SSOP14 packages
[1] [2]
[2]
Conditions VI < -0.5 V or VI > VCC + 0.5 V VO < -0.5 V or VO > VCC + 0.5 V -0.5 V < VO < VCC + 0.5 V
[1] [1]
Min -0.5 -50 -65 -
Max +7 20 20 25 50 +150 750 500
Unit V mA mA mA mA mA C mW mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed. For DIP14 package: Ptot derates linearly with 12 mW/K above 70 C. For SO14 package: Ptot derates linearly with 8 mW/K above 70 C. For (T)SSOP14 packages: Ptot derates linearly with 5.5 mW/K above 60 C.
(c) NXP B.V. 2009. All rights reserved.
74HC21_5
Product data sheet
Rev. 05 -- 7 May 2009
3 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
8. Recommended operating conditions
Table 5. Recommended operating conditions Voltages are referenced to GND (ground = 0 V) Symbol VCC VI VO t/V Parameter supply voltage input voltage output voltage input transition rise and fall rate VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Tamb ambient temperature Conditions Min 2.0 0 0 -40 Typ 5.0 1.67 Max 6.0 VCC VCC 625 139 83 +125 Unit V V V ns/V ns/V ns/V C
9. Static characteristics
Table 6. Static characteristics At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter VIH HIGH-level input voltage Conditions Min VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VIL LOW-level input voltage VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VOH HIGH-level output voltage VI = VIH or VIL IO = -20 A; VCC = 2.0 V IO = -20 A; VCC = 4.5 V IO = -20 A; VCC = 6.0 V IO = -4.0 mA; VCC = 4.5 V IO = -5.2 mA; VCC = 6.0 V VOL LOW-level output voltage VI = VIH or VIL IO = 20 A; VCC = 2.0 V IO = 20 A; VCC = 4.5 V IO = 20 A; VCC = 6.0 V IO = 4.0 mA; VCC = 4.5 V IO = 5.2 mA; VCC = 6.0 V II ICC CI input leakage current supply current input capacitance VI = VCC or GND; VCC = 6.0 V VI = VCC or GND; IO = 0 A; VCC = 6.0 V 0 0 0 0.15 0.16 3.5 0.1 0.1 0.1 0.26 0.26 0.1 2.0 0.1 0.1 0.1 0.33 0.33 1 20 0.1 0.1 0.1 0.4 0.4 1 40 V V V V V A A pF 1.9 4.4 5.9 3.98 5.48 2.0 4.5 6.0 4.32 5.81 1.9 4.4 5.9 3.84 5.34 1.9 4.4 5.9 3.7 5.2 V V V V V 1.5 3.15 4.2 25 C Typ 1.2 2.4 3.2 0.8 2.1 2.8 Max 0.5 1.35 1.8 -40 C to +85 C -40 C to +125 C Unit Min 1.5 3.15 4.2 Max 0.5 1.35 1.8 Min 1.5 3.15 4.2 Max 0.5 1.35 1.8 V V V V V V
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
4 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
10. Dynamic characteristics
Table 7. Dynamic characteristics GND = 0 V; test circuit see Figure 8. Symbol Parameter tpd propagation delay Conditions Min nA, nB, nC or nD to nY; see Figure 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V VCC = 5.0 V; CL = 15 pF tt transition time nY output; see Figure 7 VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V CPD power dissipation capacitance VI = GND to VCC
[3] [2] [1]
25 C Typ Max
-40 C to +85 C Min Max
-40 C to +125 C Unit Min Max
-
33 12 10 10 19 7 6 15
110 22 19 75 15 13 -
-
140 28 24 95 19 16 -
-
165 33 28 110 22 19 -
ns ns ns ns ns ns ns pF
[1] [2] [3]
tpd is the same as tPHL and tPLH. tt is the same as tTHL and tTLH. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD x VCC2 x fi x N + (CL x VCC2 x fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; (CL x VCC2 x fo) = sum of outputs.
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
5 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
11. Waveforms
VI nA, nB, nC, nD input GND tPHL VOH nY output VOL tTHL VM VX tTLH
001aab977
VM
tPLH VY
Measurement points are given in Table 8. VOL and VOH are typical voltage output levels that occur with the output load.
Fig 7.
Waveforms showing the input (nA, nB, nC, nD) to output (nY) propagation delays and the output transition times Measurement points Input VM 0.5VCC Output VM 0.5VCC VX 0.1VCC VY 0.9VCC
Table 8. Type 74HC21
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
6 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
VI negative pulse GND
tW 90 % VM 10 % tf tr tr tf 90 % VM 10 % tW VCC G
VI VO
VM
VI positive pulse GND
VM
DUT
RT CL
001aah768
Test data is given in Table 9. Definitions test circuit: RT = termination resistance should be equal to output impedance Zo of the pulse generator. CL = load capacitance including jig and probe capacitance.
Fig 8. Table 9. Type 74HC21
Test circuit for measuring switching times Test data Input VI VCC tr, tf 6.0 ns Load CL 15 pF, 50 pF tPLH, tPHL Test
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
7 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
12. Package outline
DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 14 8 MH wM (e 1)
pin 1 index E
1
7
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.2 0.17 A1 min. 0.51 0.02 A2 max. 3.2 0.13 b 1.73 1.13 0.068 0.044 b1 0.53 0.38 0.021 0.015 c 0.36 0.23 0.014 0.009 D (1) 19.50 18.55 0.77 0.73 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.1 e1 7.62 0.3 L 3.60 3.05 0.14 0.12 ME 8.25 7.80 0.32 0.31 MH 10.0 8.3 0.39 0.33 w 0.254 0.01 Z (1) max. 2.2 0.087
Note 1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. OUTLINE VERSION SOT27-1 REFERENCES IEC 050G04 JEDEC MO-001 JEITA SC-501-14 EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-13
Fig 9.
74HC21_5
Package outline SOT27-1 (DIP14)
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
8 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
D
E
A X
c y HE vMA
Z 14 8
Q A2 pin 1 index Lp 1 e bp 7 wM L detail X A1 (A 3) A
0
2.5 scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm A max. 1.75 A1 0.25 0.10 A2 1.45 1.25 A3 0.25 0.01 bp 0.49 0.36 c 0.25 0.19 D (1) 8.75 8.55 E (1) 4.0 3.8 0.16 0.15 e 1.27 0.05 HE 6.2 5.8 L 1.05 Lp 1.0 0.4 Q 0.7 0.6 0.028 0.024 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.7 0.3
0.010 0.057 inches 0.069 0.004 0.049
0.019 0.0100 0.35 0.014 0.0075 0.34
0.244 0.039 0.041 0.228 0.016
0.028 0.004 0.012
8 o 0
o
Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. OUTLINE VERSION SOT108-1 REFERENCES IEC 076E06 JEDEC MS-012 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Fig 10. Package outline SOT108-1 (SO14)
74HC21_5 (c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
9 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
SSOP14: plastic shrink small outline package; 14 leads; body width 5.3 mm
SOT337-1
D
E
A X
c y HE vM A
Z 14 8
Q A2 A1 pin 1 index Lp L 1 bp 7 wM detail X (A 3) A
e
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 2 A1 0.21 0.05 A2 1.80 1.65 A3 0.25 bp 0.38 0.25 c 0.20 0.09 D (1) 6.4 6.0 E (1) 5.4 5.2 e 0.65 HE 7.9 7.6 L 1.25 Lp 1.03 0.63 Q 0.9 0.7 v 0.2 w 0.13 y 0.1 Z (1) 1.4 0.9 8 o 0
o
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT337-1 REFERENCES IEC JEDEC MO-150 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Fig 11. Package outline SOT337-1 (SSOP14)
74HC21_5 (c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
10 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
TSSOP14: plastic thin shrink small outline package; 14 leads; body width 4.4 mm
SOT402-1
D
E
A
X
c y HE vMA
Z
14
8
Q A2 pin 1 index A1 Lp L (A 3) A
1
e bp
7
wM detail X
0
2.5 scale
5 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A max. 1.1 A1 0.15 0.05 A2 0.95 0.80 A3 0.25 bp 0.30 0.19 c 0.2 0.1 D (1) 5.1 4.9 E (2) 4.5 4.3 e 0.65 HE 6.6 6.2 L 1 Lp 0.75 0.50 Q 0.4 0.3 v 0.2 w 0.13 y 0.1 Z (1) 0.72 0.38 8 o 0
o
Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT402-1 REFERENCES IEC JEDEC MO-153 JEITA EUROPEAN PROJECTION ISSUE DATE 99-12-27 03-02-18
Fig 12. Package outline SOT402-1 (TSSOP14)
74HC21_5 (c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
11 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
13. Abbreviations
Table 10. Acronym CMOS DUT ESD HBM MM TTL Abbreviations Description Complementary Metal Oxide Semiconductor Device Under Test ElectroStatic Discharge Human Body Model Machine Model Transistor-Transistor Logic
14. Revision history
Table 11. 74HC21_5 Modifications: 74HC21_4 Modifications: Revision history Release date 20090507 20090407 Data sheet status Product data sheet Product data sheet Change notice Supersedes 74HC21_4 74HC21_3 Document ID
Table 1: Type number 74HCT21PW changed to 74HC21PW.
* * *
The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. Legal texts have been adapted to the new company name where appropriate. Added type number 74HC21PW (TSSOP14 package). Product data sheet Product specification Product specification 74HC_HCT21_CNV_2 74HC_HCT21_1 -
74HC21_3 74HC_HCT21_CNV_2 74HC_HCT21_1
20041112 19970828 19901201
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
12 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
15. Legal information
15.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
[1] [2] [3]
Product status[3] Development Qualification Production
Definition This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
Please consult the most recently issued document before initiating or completing a design. The term `short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com.
15.2 Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control -- This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities.
15.3 Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com
74HC21_5
(c) NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 -- 7 May 2009
13 of 14
NXP Semiconductors
74HC21
Dual 4-input AND gate
17. Contents
1 2 3 4 5 5.1 5.2 6 7 8 9 10 11 12 13 14 15 15.1 15.2 15.3 15.4 16 17 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering information . . . . . . . . . . . . . . . . . . . . . 1 Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2 Pinning information . . . . . . . . . . . . . . . . . . . . . . 2 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 Functional description . . . . . . . . . . . . . . . . . . . 3 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 Recommended operating conditions. . . . . . . . 4 Static characteristics. . . . . . . . . . . . . . . . . . . . . 4 Dynamic characteristics . . . . . . . . . . . . . . . . . . 5 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 8 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 13 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 13 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Contact information. . . . . . . . . . . . . . . . . . . . . 13 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) NXP B.V. 2009.
All rights reserved.
For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 7 May 2009 Document identifier: 74HC21_5

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