M27C160-50F1 STMicroelectronics, M27C160-50F1 Datasheet - Page 10

• Manufacturer Part Number: M27C160-50F1
• Description: IC EPROM 16MBIT 50NS 42CDIP
• Manufacturer: STMicroelectronics

Specifications of M27C160-50F1

• Format - Memory: EPROMs
• Memory Type: UV EPROM
• Memory Size: 16M (2M x 8 or 1M x 16)
• Speed: 50ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 42-CDIP (0.600", 15.24mm) Window
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Device description
2.7
2.8
2.9
10/26
Program Inhibit
Program Verify
Electronic Signature
applying a sequence of 50µs program pulses to each word until a correct verify occurs (see
Figure
activated to guarantee that each cell is programed with enough margin. No overprogram
pulse is applied since the verify in Margin mode provides the necessary margin to each
programmed cell.
Figure 5.
Programming of multiple M27C160s in parallel with different data is also easily
accomplished. Except for E, all like inputs including G of the parallel M27C160 may be
common. A TTL low level pulse applied to a M27C160's E input and V
program that M27C160. A high level E input inhibits the other M27C160s from being
programmed.
A verify (read) should be performed on the programmed bits to determine that they were
correctly programmed. The verify is accomplished with E at V
and V
The Electronic Signature (ES) mode allows the reading out of a binary code from an
EPROM that will identify its manufacturer and type. This mode is intended for use by
programming equipment to automatically match the device to be programmed with its
corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C
CC
5). During programing and verify operation a Margin mode circuit is automatically
at 6.25V.
Programming Flowchart
YES
NO
= 25
FAIL
++n
V CC = 6.25V, V PP = 12.5V
CHECK ALL WORDS
NO
2nd: V CC = 4.2V
BYTEV PP =V IH
1st: V CC = 6V
E = 50 s Pulse
VERIFY
n = 0
Addr
Last
YES
YES
NO
++ Addr
AI01044B
IH
and G at V
PP
at 12.5V, will
IL
, V
PP
M27C160
at 12.5V