CY14E064L-SZ45XI Cypress Semiconductor Corp, CY14E064L-SZ45XI Datasheet - Page 6

• Manufacturer Part Number: CY14E064L-SZ45XI
• Description: IC NVSRAM 64KBIT 45NS 28SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY14E064L-SZ45XI

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 64K (8K x 8)
• Speed: 45ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (8.77mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document Number: 001-06543 Rev. *E
Preventing STOREs
The STORE function is disabled by holding HSB high with a
driver capable of sourcing 30 mA at a V
because it has to overpower the internal pull down device. This
device drives HSB LOW for 20 μs at the onset of a STORE.
Table 1. Hardware Mode Selection
CE
H
X
L
L
L
L
WE
H
H
H
X
L
X
OH
HSB
H
H
H
H
H
L
of at least 2.2V,
A12–A0
0AAA
0AAA
1FFF
0F0F
1FFF
0F0E
0000
1555
10F0
0000
1555
10F0
X
X
X
X
When the CY14E064L is connected for AutoStore operation
(system V
and V
attempts to pull HSB LOW. If HSB does not actually get below
V
STORE attempt.
IL
, the part stops trying to pull HSB LOW and abort the
Nonvolatile RECALL
Nonvolatile STORE
Nonvolatile STORE
CC
Not Selected
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM
Write SRAM
crosses V
CC
Mode
connected to V
SWITCH
on the way down, the CY14E064L
CC
Output High Z
Output High Z
Output High Z
Output High Z
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Output Data
Input Data
and a 68 μF capacitor on V
IO
CY14E064L
Standby
Power
Active
Active
Active
Active
Page 6 of 17
I
I
CC2
CC2
CAP
)
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