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TECHNICAL DATA
IW4021B
8-Bit Shift Register
High-Voltage Silicon-Gate CMOS
The IW4021B is an Edge-Triggered 8-Bit Shift Register (Parallel-toSerial Converter) with a synchronous Serial Data Input (DS), a Clock Input (CP), an asynchronous active HIGH Parallel Load Input (PL), eight asynchronous Parallel Data Inputs (P0-P7) and Buffered Parallel Outputs from the last three stages (Q5-Q7). Information on the Parallel Data Inputs (P0-P7) is asynchronously loaded into the register while the Parallel Load Input (PL) is HIGH, independent of the Clock (CP) and Serial Data (DS) inputs. Data present in the register is stored on the HIGH-to-LOW transition of the Parallel Load Input (PL). When the Parallel Load Input is LOW, data on the Serial Data Input (DS) is shifted into the first register position and all the data in the register is shifted one position to the right on the LOW-to-HIGH transition of the Clock Input (CP). * Operating Voltage Range: 3.0 to 18 V * Maximum input current of 1 A at 18 V over full package-temperature range; 100 nA at 18 V and 25C * Noise margin (over full package temperature range): 1.0 V min @ 5.0 V supply 2.0 V min @ 10.0 V supply 2.5 V min @ 15.0 V supply
ORDERING INFORMATION IW4021BN Plastic IW4021BDW SOIC TA = -55 to 125 C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM FUNCTION TABLE
SERIAL OPERATION: t n n+1 n+2 n+3 CP DS 0 1 0 1 X PL 0 0 0 0 0 Q5 t=n+6 0 1 0 1 Q5 P7 D Q6 t=n+7 0 1 0 Q6 Q5 D Q6 D Q7 t=n+8
0 1 Q7 Q7 D
PARALLEL OPERATION: CP DS PL P5 P6 X PIN 16 =VCC PIN 8 = GND X 1 D D X = don't care D = 1 or 0
1
IW4021B
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN PD PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Power Dissipation per Output Transistor Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 to +20 -0.5 to VCC +0.5 -0.5 to VCC +0.5 10 750 500 100 -65 to +150 260
Unit V V V mA mW mW C C
Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/C from 65 to 125C SOIC Package: : - 7 mW/C from 65 to 125C
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIN, VOUT TA Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) Operating Temperature, All Package Types Min 3.0 0 -55 Max 18 VCC +125 Unit V V C
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND(VIN or VOUT)VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open.
2
IW4021B
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol VIH Parameter Minimum High-Level Input Voltage Test Conditions VOUT=0.5 V or VCC - 0.5 V VOUT=1.0 V or VCC - 1.0 V VOUT=1.5 V or VCC - 1.5 V VCC V 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 18 5.0 10 15 20 5.0 10 15 5.0 5.0 10 15 Guaranteed Limit -55C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 0.1 5.0 10 20 100 0.64 1.6 4.2 -2.0 -0.64 -1.6 -4.2 25C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 0.1 5.0 10 20 100 0.51 1.3 3.4 -1.6 -0.51 -1.3 -3.4 125C 3.5 7 11 1.5 3 4 4.95 9.95 14.95 0.05 0.05 0.05 1.0 150 300 600 3000 0.36 0.9 2.4 mA -1.15 -0.36 -0.9 -2.4 Unit V
VIL
Maximum Low -Level VOUT=0.5 V or VCC - 0.5 V Input Voltage VOUT=1.0 V or VCC - 1.0 V VOUT=1.5 V or VCC - 1.5 V Minimum High-Level Output Voltage Maximum Low-Level Output Voltage Maximum Input Leakage Current Maximum Quiescent Supply Current (per Package) VIN=GND or VCC
V
VOH
V
VOL
VIN=GND or VCC
V
IIN ICC
VIN= GND or VCC VIN= GND or VCC
A A
IOL
Minimum Output Low VIN= GND or VCC (Sink) Current VOL=0.4 V VOL=0.5 V VOL=1.5 V Minimum Output High VIN= GND or VCC (Source) Current VOH=2.5 V VOH=4.6 V VOH=9.5 V VOH=13.5 V
mA
IOH
AC ELECTRICAL CHARACTERISTICS (CL=50pF, RL=200 k, Input tr=tf=20 ns)
Symbol fmax Parameter Maximum Clock Frequency VCC V 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 3.0 6.0 8.5 320 160 120 320 160 120 200 100 80 Guaranteed Limit -55C 25C 3.0 6.0 8.5 320 160 120 320 160 120 200 100 80 7.5 125C 1.5 3.0 4.25 640 320 240 640 320 240 400 200 160 Unit MHz
tPLH, tPHL
Maximum Propagation Delay, CP to Qn
ns
tPLH, tPHL
Maximum Propagation Delay, PL to Qn
ns
tTLH, tTHL
Maximum Output Transition Time, Any Output
ns
CIN
Maximum Input Capacitance
pF
3
IW4021B
TIMING REQUIREMENTS (CL=50pF, RL=200 k, Input tr=tf=20 ns)
Symbol tw Parameter Minimum Pulse Width CP VCC V 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 5.0 10 15 160 80 50 180 80 50 120 80 60 50 30 20 0 0 0 0 0 0 280 140 100 15 15 15 Guaranteed Limit -55C 25C 160 80 50 180 80 50 120 80 60 50 30 20 0 0 0 0 0 0 280 140 100 15 15 15 125C 320 160 100 360 160 100 240 160 120 100 60 40 0 0 0 0 0 0 560 240 200 15 15 15 Unit ns
tw
Minimum Pulse Width PL
ns
tsu
Minimum Setup Time, DS toCP
ns
tsu
Minimum Setup Time, Pn to PL
ns
th
Minimum Hold Time, DS toCP
ns
th
Minimum Hold Time, Pn to PL
ns
trec
Minimum Recovery Time PL
ns
tr, tf
Maximum Input Rise or Fall Time
s
EXPANDED LOGIC DIAGRAM
4
IW4021B
N SUFFIX PLASTIC (MS - 001BB)
A 16 9 B 1 8
Dimensions, mm Symbol A B MIN 18.67 6.10 0.36 1.14 2.54 7.62 0 2.92 7.62 0.20 0.38 10 3.81 8.26 0.36 MAX 19.69 7.11 5.33 0.56 1.78
F
L
C D F
C -T- SEATING
PLANE
N G D 0.25 (0.010) M T K M H J
G H J K L M N
NOTES: 1. imensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side.
D SUFFIX SOIC (MS - 012AC)
A 16 9
Dimensions, mm Symbol. MIN 9.80 3.80 1.35 0.33 0.40 1.27 5.72 0 0.10 0.19 5.80 0.25 8 0.25 0.25 6.20 0.50 MAX 10.0 4.00 1.75 0.51 1.27
B P
H
A B C
C R x 45
1
G
8
D F G
-TD 0.25 (0.010) M T C M K
SEATING PLANE
J
F
M
H J K M P R
NOTES: 1.Dimensions A and B do not include mold flash or protrusion. 2.Maximum mold flash or protrusion 0.15 mm (0.006) per side for A, for B - 0.25 mm (0.010) per side.
5

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