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BQ4013YMA-70N Datasheet

  • BQ4013YMA-70N

  • 128Kx8 Nonvolatile SRAM

  • 472.46KB

  • 14頁

  • TI

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bq4013/Y
128Kx8 Nonvolatile SRAM
Features
鉃?/div>
Data retention for at least 10
years without power
鉃?/div>
Automatic write-protection during
power-up/power-down cycles
鉃?/div>
Conventional SRAM operation,
including unlimited write cycles
鉃?/div>
Internal isolation of battery be-
fore power application
鉃?/div>
Industry standard 32-pin DIP
pinout
General Description
The CMOS bq4013/Y is a nonvolatile
1,048,576-bit static RAM organized as
131,072 words by 8 bits. The integral
control circuitry and lithium energy
source provide reliable nonvolatility
coupled with the unlimited write cy-
cles of standard SRAM.
The control circuitry constantly
monitors the single 5V supply for an
out-of-tolerance condition. When
V
CC
falls out of tolerance, the SRAM
is unconditionally write-protected to
prevent inadvertent write operation.
At this time the integral energy
source is switched on to sustain the
memory until after V
CC
returns valid.
The bq4013/Y uses an extremely
low standby current CMOS SRAM,
coupled with a small lithium coin
cell to provide nonvolatility without
long write-cycle times and the
write-cycle limitations associated
with EEPROM.
The bq4013/Y requires no external
circuitry and is socket-compatible
with industry-standard SRAMs and
most EPROMs and EEPROMs.
Pin Connections
Pin Names
A
0
鈥揂
16
DQ
0
鈥揇Q
7
CE
OE
Address inputs
Data input/output
Chip enable input
Output enable input
WE
NC
V
CC
V
SS
Write enable input
No connect
Supply voltage input
Ground
Selection Guide
Part
Number
bq4013MA -85
bq4013MA-120
Maximum
Access
Time (ns)
85
120
Negative
Supply
Tolerance
-5%
-5%
Part
Number
bq4013YMA -70
bq4013YMA -85
bq4013YMA-120
Maximum
Access
Time (ns)
70
85
120
Negative
Supply
Tolerance
-10%
-10%
-10%
9/96 D
1

BQ4013YMA-70N 產(chǎn)品屬性

  • 12

  • 集成電路 (IC)

  • 存儲(chǔ)器

  • -

  • RAM

  • NVSRAM（非易失 SRAM）

  • 1M (128K x 8)

  • 70ns

  • 并聯(lián)

  • 4.5 V ~ 5.5 V

  • -40°C ~ 85°C

  • 32-DIP 模塊（0.61"，15.49mm）

  • 32-DIP 模塊（18.42x42.8）

  • 托盤

  • 296-9395-5

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