DS1225Y Dallas, DS1225Y Datasheet - Page 7

• Manufacturer Part Number: DS1225Y
• Description: 64k Nonvolatile SRAM
• Manufacturer: Dallas

8. If WE is low or the WE low transition occurs prior to or simultaneously with the CE low transition, the output buffers
9. Each DS1225Y is marked with a 4–digit date code AABB. AA designates the year of manufacture. BB designates
10. All AC and DC electrical characteristics are valid over the full operating temperature range. For commercial prod-
11. In a power down condition the voltage on any pin may not exceed the voltage on V
12. t
13. t
14. DS1225Y modules are recognized by Underwriters Laboratory (U.L. ) under file E99151 (R).
DC TEST CONDITIONS
Outputs open.
All voltages are referenced to ground.
ORDERING INFORMATION
remain in a high impedance state during this period.
the week of manufacture. The expected t
ucts, this range is
WR1
WR2
, t
, t
DH1
DH2
are measured from WE going high.
are measured from CE going high.
0 C to 70 C.
DS1225 TTP– SSS – III
For industrial products (IND), this range is
V
Y:
CC
Package Type
Blank: 28–pin 600 mil DIP
DR
10%
Tolerance
is defined as starting at the date of manufacture.
Access
150:
170:
200:
Operating Temperature Range
Blank: 0 C to 70 C
IND: –40 C to +85 C
Speed
150 ns
170 ns
200 ns
AC TEST CONDITIONS
Output Load: 100pF + 1TTL Gate
Input Pulse Levels: 0–3.0V
Timing Measurement Reference Levels
Input Pulse Rise and Fall Times: 5ns
Input:1.5V Output: 1.5V
–40 C to +85 C.
CC
.
021998 7/8
DS1225Y