CY14B256L-SP35XC Cypress Semiconductor Corp, CY14B256L-SP35XC Datasheet - Page 4

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CY14B256L-SP35XC

Manufacturer Part Number
CY14B256L-SP35XC
Description
IC NVSRAM 256KBIT 35NS 48SSOP
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Datasheets

Specifications of CY14B256L-SP35XC

Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
256K (32K x 8)
Speed
35ns
Interface
Parallel
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Package / Case
48-SSOP
Word Size
8b
Organization
32Kx8
Density
256Kb
Interface Type
Parallel
Access Time (max)
35ns
Operating Supply Voltage (typ)
3.3V
Package Type
SSOP
Operating Temperature Classification
Commercial
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.7V
Operating Temp Range
0C to 70C
Pin Count
48
Mounting
Surface Mount
Supply Current
55mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
428-2031-5
CY14B256L-SP35XC
Table 1. Pin Definitions
Document Number: 001-54707 Rev. *F
DQ
Pin Name
A
0
V
HSB
0
V
WE
V
CE
OE
NC
– A
CAP
– DQ
CC
SS
14
7
Input/Output Bidirectional data I/O lines. Used as input or output lines depending on operation.
Input/Output Hardware STORE busy (HSB). When LOW this output indicates that a Hardware STORE is in progress.
No connect No connect. This pin is not connected to the die.
I/O Type
Ground
supply
supply
Power
Power
Input
Input
Input
Input
Address inputs. Used to select one of the 32,768 bytes of the nvSRAM.
Write enable input, active LOW. When the chip is enabled and WE is LOW, data on the I/O pins is written
to the specific address location.
Chip enable input, active LOW. When LOW, selects the chip. When HIGH, deselects the chip.
Output enable, active LOW. The active LOW OE input enables the data output buffers during read cycles.
I/O pins are tristated on deasserting OE HIGH.
Ground for the device. Must be connected to the ground of the system.
Power supply inputs to the device. 3.0 V +20%, –10%
When pulled LOW external to the chip it initiates a nonvolatile STORE operation. After each Hardware
and Software STORE operation HSB is driven HIGH for a short time (t
current and then a weak internal pull-up resistor keeps this pin HIGH (External pull-up resistor connection
optional).
AutoStore capacitor. Supplies power to the nvSRAM during power loss to store data from SRAM to nonvol-
atile elements.
Description
HHHD
) with standard output high
CY14B256LA
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