PUMA2S16000I-025 Advanced Packaging Technology Of America, PUMA2S16000I-025 Datasheet - Page 3

• Manufacturer Part Number: PUMA2S16000I-025
• Description: SRAM, PUMA S16000 is a 16 MBit SRAM module user configurable as 512K x 32, 1M x 16 or 2M x 22
• Manufacturer: Advanced Packaging Technology Of America

The Table below shows the logic inputs required to control the operating modes of each of the SRAMs on the
device.
Note: CS above is accessed through CS1~4 and WE is accessed through WE1~4. For correct operation, CS1~ 4 and
Parameter
Input Capacitance Address, OE
I/O Capacitance
PUMA 2/77S16000 - 020/025/35
Operating Modes
AC Test Conditions
Capacitance (V
1 = V
0 = V
X = Don't Care
WE1~4 must operate simultaneously for 32 bit operation, in pairs for 16 bit operation, or singly for 8 bit operation.
*Input pulse levels: 0.0V to 3.0V
*Input rise and fall times: 3 ns
*Input and Output timing reference levels: 1.5V
*V
*PUMA module is tested in 32 bit mode.
Mode
Not Selected
Output Disable
Read
Write
cc
=5V±10%
IH
IL
,
,
WE1~4, CS1~4
CC
=5V±10%,T
D0~31
CS
1
0
0
0
A
=25°C)
OE
X
X
1
0
Symbol
C
C
C
IN1
IN2
I/O
WE
Note: These parameters are calculated and not measured.
X
1
1
0
Test Condition
V
V
V
V
IN
IN
I/O
CC
=0V
=0V
=0V
Current
I
SB1
I
I
I
CC
CC
CC
,I
3
SB2
Output Load
I/O Pin
High Z
High Z
D
I/O Pin
D
typ
OUT
-
-
-
IN
max Unit
34
42
Reference Cycle
Power Down
Read cycle
Write Cycle
6
30pF
166
pF
pF
pF (8 bit mode)
1.76V
ISSUE 4.5 September 2002