M27C256B-70XF1 STMicroelectronics, M27C256B-70XF1 Datasheet - Page 12

• Manufacturer Part Number: M27C256B-70XF1
• Description: IC EPROM 256KBIT 70NS 28CDIP
• Manufacturer: STMicroelectronics

Specifications of M27C256B-70XF1

• Format - Memory: EPROMs
• Memory Type: UV EPROM
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-CDIP (0.600", 15.24mm) Window
• Capacitance, Input: 6 pF
• Capacitance, Output: 12 pF
• Current, Input, Leakage: ±10 μA (Read)
• Current, Operating: 30 mA (Read)
• Current, Output, Leakage: ±10 μA (Read)
• Density: 256K
• Organization: 32K×8
• Package Type: FDIP28W
• Temperature, Operating: 0 to +70 °C
• Time, Access: 70 ns
• Time, Fall: ≤20 ns
• Time, Rise: ≤20 ns
• Voltage, Input, High: 6 V (Read)
• Voltage, Input, Low: 0.8 V (Read)
• Voltage, Output, High: 4.3 V (Read)
• Voltage, Output, Low: 0.4 V (Read)
• Voltage, Supply: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Maximum rating
3
12/24
Maximum rating
Stressing the device above the rating listed in the Absolute Maximum Ratings table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 4.
1. Depends on range.
2. Minimum DC voltage on Input or Output is –0.5V with possible undershoot to –2.0V for a period less than
Symbol
20ns. Maximum DC voltage on Output is V
than 20ns.
V
T
V
T
V
V
A9
BIAS
IO
T
STG
CC
PP
A
(2)
(2)
Absolute maximum ratings
Ambient Operating Temperature
Temperature Under Bias
Storage Temperature
Input or Output Voltage (except A9)
Supply Voltage
A9 Voltage
Program Supply Voltage
Parameter
CC
+0.5V with possible overshoot to V
(1)
CC
–40 to 125
–50 to 125
–65 to 150
–2 to 13.5
+2V for a period less
–2 to 14
–2 to 7
–2 to 7
Value
M27C256B
Unit
°C
°C
°C
V
V
V
V