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PDF R1LV0408CSA-7LI Datasheet ( Hoja de datos )

Número de pieza R1LV0408CSA-7LI
Descripción Wide Temperature Range Version 4M SRAM (512-kword 8-bit)
Fabricantes Hitachi Semiconductor 
Logotipo Hitachi Semiconductor Logotipo

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R1LV0408CSA-7LI Hoja de datos, Descripción, Manual
R1LP0408C-I Series
Wide Temperature Range Version
4 M SRAM (512-kword × 8-bit)
REJ03C0067-0100Z
Rev. 1.00
Aug.01.2003
Description
The R1LP0408C-I is a 4-Mbit static RAM organized 512-kword × 8-bit. R1LP0408C-I Series has realized
higher density, higher performance and low power consumption by employing CMOS process technology
(6-transistor memory cell). The R1LP0408C-I Series offers low power standby power dissipation;
therefore, it is suitable for battery backup systems. It has packaged in 32-pin SOP, 32-pin TSOP II.
Features
Single 5 V supply: 5 V ± 10%
Access time: 55/70 ns (max)
Power dissipation:
Active: 10 mW/MHz (typ)
Standby: 4 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 TTL compatible.
All inputs and outputs
Battery backup operation.
Operating temperature: 40 to +85°C
Rev.1.00, Aug.01.2003, page 1 of 13

1 page

R1LV0408CSA-7LI pdf
R1LP0408C-I Series
Operation Table
WE# CS# OE# Mode
×
H×
Not selected
H L H Output disable
H L L Read
L L H Write
L L L Write
Note: H: VIH, L: VIL, ×: VIH or VIL
VCC current
ISB, ISB1
ICC
ICC
ICC
ICC
I/O0 to I/O7
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 relative to VSS
Terminal voltage on any pin relative to VSS
Power dissipation
Operating temperature
VCC
VT
PT
Topr
Storage temperature range
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
0.7
40 to +85
65 to +150
40 to +85
Unit
V
V
W
°C
°C
°C
DC Operating Conditions
(Ta = 40 to +85°C)
Parameter
Symbol
Min
Supply voltage
VCC
4.5
VSS 0
Input high voltage
Input low voltage
VIH
VIL
2.2
0.3*1
Note: 1. VIL min: 3.0 V for pulse half-width 30 ns.
Typ Max
Unit
5.0 5.5
V
00
V
VCC + 0.3
V
0.8 V
Rev.1.00, Aug.01.2003, page 5 of 13

5 Page

R1LV0408CSA-7LI arduino
R1LP0408C-I Series
Write Timing Waveform (2) (OE# Low Fixed)
Address
CS#
WE#
Dout
Din
tWC
Valid address
tCW
tWR
*8 tAW
tWP
tAS
tWHZ
tOH
tOW
*9 *10
High impedance
tDW tDH
Valid data
*11
Rev.1.00, Aug.01.2003, page 11 of 13

11 Page


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