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PDF HM62W8512BLTT-5SL Data sheet ( Hoja de datos )
| Número de pieza | HM62W8512BLTT-5SL | |
| Descripción | 4 M SRAM (512-kword x 8-bit) | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HM62W8512B Series
4 M SRAM (512-kword × 8-bit)
ADE-203-904E (Z)
Rev. 4.0
Oct. 20, 1999
Description
The Hitachi HM62W8512B is a 4-Mbit static RAM organized 512-kword × 8-bit. It realizes higher density,
higher performance and low power consumption by employing 0.35 µm Hi-CMOS process technology. The
device, packaged in a 525-mil SOP (foot print pitch width) or 400-mil TSOP TYPE II is available for high
density mounting. The HM62W8512B is suitable for battery backup system.
Features
• Single 3.3 V supply: 3.3 V ± 0.3 V
• Access time: 55/70 ns (max)
• Power dissipation
Active: 16.5 mW/MHz (typ)
Standby: 3.3 µW (typ)
• Completely static memory. No clock or timing strobe required
• Equal access and cycle times
• Common data input and output: Three state output
• Directly LV-TTL compatible: All inputs and outputs
• Battery backup operation
1 page  
Function Table
WE CS
×H
HL
HL
LL
LL
Note: ×: H or L
OE
×
H
L
H
L
HM62W8512B Series
Mode
Not selected
Output disable
Read
Write
Write
VCC current
ISB, ISB1
I CC
I CC
I CC
I CC
Dout pin
High-Z
High-Z
Dout
Din
Din
Ref. cycle
—
—
Read cycle
Write cycle (1)
Write cycle (2)
Absolute Maximum Ratings
Parameter
Symbol
Power supply voltage
Voltage on any pin relative to VSS
Power dissipation
Operating temperature
VCC
VT
PT
Topr
Storage temperature
Tstg
Storage temperature under bias
Tbias
Notes: 1. –3.0 V for pulse half-width ≤ 30 ns
2. Maximum voltage is 4.6 V
Value
–0.5 to +4.6
–0.5*1 to VCC + 0.5*2
1.0
–20 to +70
–55 to +125
–20 to +85
Unit
V
V
W
°C
°C
°C
Recommended DC Operating Conditions (Ta = –20 to +70°C)
Parameter
Symbol
Min
Typ Max
Supply voltage
VCC
VSS
Input high voltage
VIH
Input low voltage
VIL
Note: 1. –3.0 V for pulse half-width ≤ 30 ns
3.0
0
2.0
–0.3*1
3.3
0
—
—
3.6
0
VCC + 0.3
0.8
Unit
V
V
V
V
5
5 Page 
Write Timing Waveform (2) (OE Low Fixed)
HM62W8512B Series
Address
CS
WE
Dout
Din
tWC
tCW tWR
*8 tAW
tWP
tAS
tWHZ
tOW
tOH
*9
*10
tDW tDH
Valid Data
*11
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet HM62W8512BLTT-5SL.PDF ] | |
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