CY14E256LA-SZ25XI Cypress Semiconductor Corp, CY14E256LA-SZ25XI Datasheet - Page 12

• Manufacturer Part Number: CY14E256LA-SZ25XI
• Description: IC NVSRAM 256KBIT 25NS 32SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY14E256LA-SZ25XI

• Memory Size: 256K (32K x 8)
• Package / Case: *
• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Speed: 25ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Organization: 32 K x 8
• Access Time: 25 ns
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Operating Current: 70 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AutoStore/Power Up RECALL
Switching Waveforms
Document Number: 001-54952 Rev. *D
Notes
t
t
t
V
t
V
t
t
17. t
20. Read and Write cycles are ignored during STORE, RECALL, and while V
HRECALL
STORE
DELAY
VCCRISE
LZHSB
HHHD
18. If an SRAM write has not taken place since the last nonvolatile cycle, no AutoStore or Hardware STORE takes place.
19. On a Hardware STORE and AutoStore initiation, SRAM write operation continues to be enabled for time t
21. During power up and power down, HSB glitches only when HSB pin is pulled up through an external resistor.
SWITCH
HDIS
HRECALL
[10]
[10]
[19]
[10]
[18]
Parameters
[10]
[17]
Read & Write
starts from the time V
Inhibited
(RWI)
POWER-
AutoStore
RECALL
HSB OUT
V
UP
SWITCH
V
V
HDIS
CC
CC
POWER-UP
Power Up RECALL Duration
STORE Cycle Duration
Time Allowed to Complete SRAM Write Cycle
Low Voltage Trigger Level
VCC Rise Time
HSB Output Disable Voltage
HSB To Output Active Time
HSB High Active Time
rises above V
RECALL
V
Note
VCCRISE
21
SWITCH.
Figure 8. AutoStore or Power Up RECALL
Read & Write
t
t
t
LZHSB
HRECALL
HHHD
Description
Note
AutoStore
t
BROWN
DELAY
OUT
CC
18
is below V
t
STORE
POWER-UP
RECALL
SWITCH.
t
HRECALL
t
t
HHHD
LZHSB
Read & Write
DELAY
[20]
.
t
DELAY
Min
150
CY14E256LA
Note
AutoStore
POWER
DOWN
18
Note
CY14E256LA
t
STORE
Max
500
4.4
1.9
20
25
8
5
21
Page 12 of 18
Unit
ms
ms
ns
µs
µs
ns
V
V
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