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CY27C128 automatically powers down into a low power stand by mode. The D Wide speed range CY27C128 is packaged in the industry 45 ns to 200 ns (commercial and standard 600 mil DIP and LCC packages. military) The CY27C128 is also available in a Cer D Low power DIP package equipped with an erasure window to provide for reprogrammability. 248 mW (commercial) When exposed to UV light, the EPROM 303 mW (military) is erased and can be reprogrammed. The D Low standby power cells utilize Less than 83 mW when deselected memorygate technologyproven EPROM floating and byte wide in D 10% Power supply tolerance telligent programming algorithms. Functional Description The CY27C128 offers the advantage of performance The CY27C128 is a high performance lower power and superior EPROM cell and yield. The re 16,384 word by 8 bit CMOS EPROM. programming12.5V for the super voltage, quires only When disabled (CE HIGH), the
Features
128K (16K x 8 Bit) CMOS EPROM
CY27C128
and low current requirements allow for gang programming. The EPROM cells al low each memory location to be tested 100% because each location is written into, erased, and repeatedly exercised prior to encapsulation. Each EPROM is also tested for AC performance to guar antee that after customer programming, the product will meet both DC and AC specification limits. Reading the CY27C128 is accomplished by placing active LOW signals on OE and CE. The contents of the memory location addressed by the address lines (A0 - A13) will become available on the output lines (O0 - O7).
Logic Block Diagram
A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 COLUMN A2 A1 A0 ADDRESS O5 ROW ADDRESS 128 x 1024 PROGRAMABLE ARRAY 8 x 1 OF 128 MULTIPLEXER O7 O6 VPP A12 A7 A6 A5 A4 O4 A3 A2 A1 O3 A0 O0 O1 O2 O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Pin Configurations
DIP/Flatpack
28 27 26 25 24 27C128 23 22 21 20 19 18 17 16 15 VCC PGM A13 A8 A9 A11 OE A10 CE O7 O6 O5 O4 O3 C128 2 O1 POWER DOWN A6 A5 A4 A3 A2 A1 A0 NC O0 5 6 7 8 9 10 11 12 13 27C128
LCC/PLCC [1]
V PP V CC PGM A 12 A7 4 3 2 1 32 31 30 29 28 27 26 25 24 23 22 21 A8 A9 A11 NC OE A10 CE O7 O6 A 13 O C128 3 5 DU DU
ADDRESS DECODER
14 15 16 17 1819 20 GND 1 2 3 O 4 O
O
O0 CE
OE
C128 1
Selection Guide 27C128-45 27C128-55 27C128-70 27C128-90 27C128-120 27C128-150 27C128-200 Maximum Access Time (ns) 45 55 70 90 120 150 200 Maximum 45 45 45 45 45 45 45 Operating [2] Com'l 55 55 55 55 55 55 55 Mil Current (mA) 15 15 15 15 15 15 15 Standby Current Com'l (mA) ( A) 20 20 20 20 20 20 20 Mil Chip Select Time (ns) 45 55 70 90 120 150 200 Output Enable Time (ns) 15 20 25 30 30 40 40
Notes:
1. For PLCC only: Pins 1 and 17 are common and tied to the die attach 2. Add 2 mA/MHz for AC power component. pad. They must therefore be DU (don't use) for the PLCC package.
Cypress Semiconductor Corporation
D
3901 North First Street 1
D
San Jose
D
CA 95134
O
D
408-943-2600 February 1994
CY27C128
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature . . . . . . . . . . . . . . . . . . -65_C to +150_C Ambient Temperature with Power Applied . . . . . . . . . . . . . . . . . . . . . . . - 55_C to +125_C Supply Voltage to Ground Potential . . . . . . . . - 0.5V to +7.0V DC Voltage Applied to Outputs in High Z State . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5V to +7.0V DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . -3.0V to +7.0V DC Program Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.0V Static Discharge Voltage . . . . . . . . . . . . . . . . . . . . . . . . >2001V (per MIL STD 883, Method 3015)
Electrical Characteristics
Latch Up Current . . . . . . . . . . . . . . . . . . . . . . . . . . . >200 mA UV Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . 7258 Wsec/cm2
Operating Range
Ambient Range Temperature VCC
Commercial Industrial[3] Military[4]
0_C to +70_C -40_C to +85_C -55_C to +125_C
5V 10% 5V 10% 5V 10%
Over the Operating Range[5]
27C128-45, 55, 70, 90, 120, 150, 200
Parameter
Description
Test Conditions
Min.
Max.
Unit
VOH VOL VIH VIL IIX IOZ IOS ICC
Output HIGH Voltage Output LOW Voltage Input HIGH Level Input LOW Level Input Current Output Leakage Current Current[7]
[2]
VCC = Min., IOH = - 4.0 mA VCC = Min., IOL = 16.0 mA[6] Guaranteed Input Logical HIGH Voltage for All Inputs Guaranteed Input Logical LOW Voltage for All Inputs GND < VIN < VCC GND < VOUT < VCC, Output Disabled VCC = Max., VOUT = GND VCC = Max., VIN =VIH, IOUT = 0 mA, CE=VIL, OE = VIH VCC = Max., CE = VIH Commercial Military Commercial Military Commercial Military
2.4 0.4 2.0 -0.3 -10 -10 -40 -20 VCC 0.8 +10 +10 +40 -90 45 55 15 20 12 3.0 0.4 13 50
V V V V
mA mA
mA mA
Output Short Circuit
Power Supply Current
ISB VPP IPP VIHP VILP
Standby Supply Current
mA
Programming Supply Voltage Programming Supply Current Input HIGH Programming Voltage Input LOW Programming Voltage
[8]
Description Test Conditions
V mA V V
Capacitance
Parameter
Max.
Unit
CIN COUT
Notes:
Input Capacitance Output Capacitance
TA = 25_C, f = 1 MHz, VCC = 5.0V 5 0V
6 7. 8.
10 10
pF pF
3. 4. 5.
Contact a Cypress representative for information on industrial tem perature range specifications. TA is the instant on" case temperature. See the last page of this specification for Group A subgroup testing in formation.
IOL=12.0 mA for military devices. For test purposes, not more than one output at a time should be shorted. Short circuit test duration should not exceed 30 seconds. See Introduction to CMOS PROMs in this Data Book for general in formation on testing.
2
CY27C128
AC Test Loads and Waveforms
R1 250W (329W MIL) R1 250W (329W MIL) 5V OUTPUT 30 pF INCLUDING JIG AND SCOPE R2 167W (202W MIL 5V OUTPUT R2 167W 5 pF INCLUDING JIG AND SCOPE
C128 4
ALL INPUT PULSES 3.0V 90% 10% GND < 5 ns < 5 ns 90% 10%
(202W MIL
C128 5
(a) Normal Load
(b) High Z Load
Equivalent to:
THEVENIN EQUIVALENT
100W OUTPUT 2.00 V
125W OUTPUT 1.9 V
Commercial
Military
Switching Characteristics Over the Operating Range[4, 7]
27C128-45 Parameter
tAA tHZOE tOE tHZCE tACE tPU tPD tOH
27C128-55 Min. Max.
55 20 20 25 55 0
27C128-70 Min. Max.
70 25 25 25 70 0
27C128-90 Min. Max.
90 25 30 25 90 0
Description
Address to Output Valid Outpout Enable Inactive to High Z Output Enable Active to Output Valid Chip Enable Inactive to High Z Chip Enable Active to Output Valid Chip Enable Active to Power Up Chip Enable Inactive to Power Down Output Hold from Address Change
Min.
Max.
45 15 15 20 45
Unit
ns ns ns ns ns ns
0 45 0
55 0 0
70 0
90
ns ns
Switching Characteristics Over the Operating Range[4, 7] (continued)
27C128-120 Parameter
tAA tHZOE tOE tHZCE tACE tPU tPD tOH
27C128-150 Min. Max.
150 30 40 30 150 0
27C128-200 Min. Max.
200 30 40 30 200 0
Description
Address to Output Valid Outpout Enable Inactive to High Z Output Enable Active to Output Valid Chip Enable Inactive to High Z Chip Enable Active to Output Valid Chip Enable Active to Power Up Chip Enable Inactive to Power Down Output Hold from Address Change
Min.
Max.
120 30 30 30 120
Unit
ns ns ns ns ns ns
0 120 0
150 0 0
200
ns ns
3
CY27C128
Switching Waveform
ICC SUPPLY CURRENT 50% 50% tPD tPU POWER DOWN CONTROLLED BY CE
A0 - A13 ADDRESS
OE, CE
tAA tOH
(tHZOE) tHZCE
(tOE) tACE HIGH Z
O0 - O7
PREVIOUS DATA VALID
DATA VALID
Erasure Characteristics
Wavelengths of light less than 4000 A begin to erase the 27C128 in the windowed package. For this reason, an opaque label should be placed over the window if the EPROM is exposed to sunlight or fluorescent lighting for extended periods of time. The recommended dose of ultraviolet light for erasure is a wave length of 2537 A for a minimum dose (UV intensity multiplied by exposure time) of 25 Wsec/cm2. For an ultraviolet lamp with a 12 mW/cm2 power rating, the exposure time would be approximately 35 minutes. The CY27C128 needs to be within 1 inch of the lamp
C128 6
Programming Modes
during erasure. Permanent damage may result if the EPROM is exposed to high intensity UV light for an extended period of time. 7258 Wsec/cm2 is the recommended maximum dosage.
Mode
Read Output Disable Power Down
Table 1. CY27C128 Mode Selection Pin Function A13 - A0 OE CE VPP
[9]
Programming support is available from Cypress as well as from a number of third party software vendors. For detailed program ming information, including a listing of software packages, please see the EPROM Programming Information located at the end of this section. Programming algorithms can be obtained from any Cypress representative.
PGM
Note 10 Note 10 Note 10
O7 - O0
O7 - O0 High Z High Z
A13 - A0 A13 - A0 A13 - A0
VIL VIH X
VIL X VIH
X X X
Notes:
9.
X must be either VIL or VIH.
10. X must be either VIL or VIH (must not switch).
4
CY27C128
T ypical DC and AC Characteristics
NORMALIZED SUPPLY CURRENT vs. SUPPLY VOLTAGE
NORMALIZED SUPPLY CURRENT vs. AMBIENT TEMPERATURE
NORMALIZED ACCESS TIME vs. SUPPLY VOLTAGE
1.4 1.3 NORMALIZED I CC 1.2 1.1 1.0 0.9 0.8 0.7 0.6 4.0 4.5 5.0 5.5 6.0 NORMALIZED I CC
1.3 NORMALIZED ACCESS TIME -50 0 50 100 150
1.25 1.2 1.15 1.1 1.05 1.0 0.95 0.9 0.85 0.8 4.0 4.5 5.0 5.5 6.0
1.2
1.1
1.0
0.9
TA = 25_C f = fMAX
0.8
0.7 -100
SUPPLY VOLTAGE (V)
AMBIENT TEMPERATURE (_C)
SUPPLY VOLTAGE (V)
NORMALIZED ACCESS TIME
OUTPUT SOURCE CURRENT
TYPICAL ACCESS TIME CHANGE vs. OUTPUT LOADING
OUTPUT SOURCE CURRENT (mA)
vs. TEMPERATURE
vs. OUTPUT VOLTAGE
1.4 NORMALIZED ACCESS TIME
60
30.0
1.3
50 (ns) DELTA t VCC = 5V TA = 25_C
AA
25.0
1.2
40
20.0
1.1
30
15.0
1.0
20
10.0 VCC = 4.5V TA = 25_C 0.0
0.9
10
5.0
0.8 -100 -50 0 50 100 150
0 0 1.0 2.0 3.0 4.0
0
200
400
600
800
1000
AMBIENT TEMPERATURE (_C)
OUTPUT VOLTAGE (V)
CAPACITANCE (pF)
OUTPUT SINK CURRENT vs. OUTPUT VOLTAGE
NORMALIZEDSUPPLY CURRENT vs. ACCESS TIME
OUTPUT SINK CURRENT (mA)
175 150 NORMALIZED I CC
1.2 1.15 1.1 1.05 1.0 0.95 0.9 0.85 0.8 VCC = 5.6V TA = 25_C
125 100
75 VCC = 5.0V 50 25 0 0.0 1.0 2.0 3.0 4.0 TA = 25_C
0.75 0 100 200 300 400 500
OUTPUT VOLTAGE (V)
CYCLE TIME (ns)
5
CY27C128
Ordering Information[11]
Speed (ns)
45
Ordering Code
CY27C128-45JC CY27C128-45PC CY27C128-45WC CY27C128-45WMB
Package Name
J65 P15 W16 W16 J65 P15 W16 W16 J65 P15 W16 W16 J65 P15 W16 W16 J65 P15 W16 W16 J65 P15 W16 W16 J65 P15 W16 W16
Package Type
32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP 32 Pin Rectangular Plastic Leaded Chip Carrier 28 Lead (600 Mil) Molded DIP 28 Lead (600 Mil) Windowed CerDIP 28 Lead (600 Mil) Windowed CerDIP
Operating Range
Commercial
Military Commercial
55
CY27C128-55JC CY27C128-55PC CY27C128-55WC CY27C128-55WMB
Military Commercial
70
CY27C128-70JC CY27C128-70PC CY27C128-70WC CY27C128-70WMB
Military Commercial
90
CY27C128-90JC CY27C128-90PC CY27C128-90WC CY27C128-90WMB
Military Commercial
120
CY27C128-120JC CY27C128-120PC CY27C128-120WC CY27C128-120WMB
Military Commercial
150
CY27C128-150JC CY27C128-150PC CY27C128-150WC CY27C128-150WMB
Military Commercial
200
CY27C128-200JC CY27C128-200PC CY27C128-200WC CY27C128-200WMB
Military
Note: 11. Most of these products are available in industrial temperature range. Contact a Cypress representative for specifications and product avail ability.
6
CY27C128
MILITARY SPECIFICATIONS Group A Subgroup Testing DC Characteristics
Parameter Subgroups
VOH VOL VIH VIL IIX IOZ ICC ISB
1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3
Switching Characteristics
tAA tOE tACE
Parameter
7, 8, 9, 10, 11 7, 8, 9, 10, 11 7, 8, 9, 10, 11
Subgroups
Document #: 38-00357
7
CY27C128
Package Diagrams
32 Lead Plastic Leaded Chip Carrier J65
28 Lead (600 Mil) Molded DIP P15
8
CY27C128
Package Diagrams (continued)
28 Lead (600 Mil) Windowed CerDIP W16
MIL-STD-1835 D-10 Config. A
E
Cypress Semiconductor Corporation, 1993. The information contained herein is subject to change without notice.
Cypress Semiconductor Corporation assumes no responsibility for
the use of any circuitry other than circuitry embodied in a Cypress Semiconductor Corporation product. Nor does it convey or imply any license under patent or other rights. Cypress Semicon ductor does not authorize its products for use as critical components in life support systems where a malfunction or failure of the product may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life support systems applications implies that the manufacturer assumes all risk of such use and in so doing indemnifies Cypress Semiconductor against all damages.
9

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