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PDF HM628100I Data sheet ( Hoja de datos )
| Número de pieza | HM628100I | |
| Descripción | 8M SRAM | |
| Fabricantes | Renesas | |
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HM628100I Series
Wide Temperature Range Version
8 M SRAM (1024-kword × 8-bit)
ADE-203-1302B (Z)
Rev. 1.0
Sep. 25, 2002
Description
The Hitachi HM628100I Series is 8-Mbit static RAM organized 1,048,576-word × 8-bit. HM628100I Series
has realized higher density, higher performance and low power consumption by employing CMOS process
technology (6-transistor memory cell). It offers low power standby power dissipation; therefore, it is suitable
for battery backup systems. It is packaged in standard 44-pin TSOP II for high density surface mounting.
Features
• Single 5.0 V supply: 5.0 V ± 10 %
• Fast access time: 55 ns (max)
• Power dissipation:
Active: 10 mW/MHz (typ)
Standby: 7.5 µW (typ)
• Completely static memory.
No clock or timing strobe required
• Equal access and cycle times
• Common data input and output.
Three state output
• Battery backup operation.
2 chip selection for battery backup
• Temperature range: –40 to +85°C
1 page  
Operation Table
CS1 CS2 WE
H×
×
× L×
L HH
L HL
L HH
Note: H: VIH, L: VIL, ×: VIH or VIL
OE
×
×
L
×
H
I/O0 to I/O7
High-Z
High-Z
Dout
Din
High-Z
HM628100I Series
Operation
Standby
Standby
Read
Write
Output disable
Absolute Maximum Ratings
Parameter
Symbol
Power supply voltage relative to VSS
Terminal voltage on any pin relative to VSS
Power dissipation
Storage temperature range
VCC
VT
PT
Tstg
Storage temperature range under bias
Tbias
Notes: 1. VT min: –3.0 V for pulse half-width ≤ 30 ns.
2. Maximum voltage is +7.0 V.
Value
–0.5 to + 7.0
–0.5*1 to VCC + 0.3*2
1.0
–55 to +125
–40 to +85
Unit
V
V
W
°C
°C
DC Operating Conditions
Parameter
Symbol Min Typ Max Unit Note
Supply voltage
Input high voltage
Input low voltage
Ambient temperature range
VCC 4.5 5.0 5.5 V
VSS 0 0 0 V
VIH 2.2 —
VCC + 0.3 V
VIL –0.3 — 0.8 V
Ta –40 — 85 °C
1
Note: 1. VIL min: –3.0 V for pulse half-width ≤ 30 ns.
5
5 Page 
Write Cycle (2) (CS Clock, OE = VIH)
Address
CS1
tAS*6
CS2
WE
Din
Dout
HM628100I Series
tWC
Valid address
tAW
tCW*5
tCW*5
tWR*7
tWP*4
tDW tDH
Valid data
High impedance
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet HM628100I.PDF ] | |
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