CY62256LL-70PXC Cypress Semiconductor Corp, CY62256LL-70PXC Datasheet - Page 4

• Manufacturer Part Number: CY62256LL-70PXC
• Description: IC SRAM 256KBIT 70NS 28DIP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY62256LL-70PXC

• Format - Memory: RAM
• Memory Type: SRAM
• Memory Size: 256K (32K x 8)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-1748-5; CY62256LL-70PXC

Document #: 38-05248 Rev. *E
AC Test Loads and Waveforms
Data Retention Characteristics
Data Retention Waveform
Note:
OUTPUT
6. No input may exceed V
V
I
t
t
CCDR
CDR
R
DR
[5]
Parameter
INCLUDING
[5]
5V
JIG AND
SCOPE
V
100 pF
CE
CC
R1 1800Ω
V
Data Retention Current
Chip Deselect to Data Retention Time
Operation Recovery Time
(a)
CC
CC
+ 0.5V.
for Data Retention
R2
990Ω
Description
OUTPUT
INCLUDING
5V
Equivalent to:
JIG AND
SCOPE
t
CDR
3.0V
5 pF
L
LL
LL - Ind’l
LL - Auto
OUTPUT
(b)
R1 1800Ω
THÉ VENIN EQUIVALENT
V
V
DATA RETENTION MODE
R2
990Ω
CC
IN
> V
= 3.0V, CE > V
CC
Conditions
V
639Ω
DR
− 0.3V, or V
> 2V
CC
GND
3.0V
[6]
IN
− 0.3V,
< 5 ns
1.77V
< 0.3V
10%
Min.
2.0
t
RC
0
ALL INPUT PULSES
90%
3.0V
t
R
Typ.
0.1
0.1
0.1
2
[2]
Max.
CY62256
50
10
10
5
90%
Page 4 of 13
10%
< 5 ns
Unit
µA
µA
µA
µA
ns
ns
V