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HM62V16256C View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name
Description
View to exact match
HM62V16256C
Hitachi
Hitachi -> Renesas Electronics Hitachi
HM62V16256C Datasheet PDF : 18 Pages
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HM62V16256C Series
Low VCC Data Retention Characteristics (Ta = –20 to +70°C)
Parameter
Symbol Min
Typ*4 Max
Unit
Test conditions*3
VCC for data retention
VDR
2.0
3.6
V
Vin 0V
(1) 0 V CS2 0.2 V or
(2) CS2 VCC – 0.2 V
CS1 VCC – 0.2 V or
(3) LB = UB VCC – 0.2 V,
CS2 VCC – 0.2 V,
CS1 0.2 V
Data retention current
I
*1
CCDR
0.8
20
µA
VCC = 3.0 V, Vin 0V
(1) 0 V CS2 0.2 V or
(2) CS2 VCC – 0.2 V,
CS1 VCC – 0.2 V or
(3) LB = UB VCC – 0.2 V,
CS2 VCC – 0.2 V,
CS1 0.2 V
Chip deselect to data
retention time
I
*2
CCDR
t CDR
0
0.8
10
µA
ns
See retention waveform
Operation recovery time
tR
t RC* 5
ns
Notes: 1. This characteristic is guaranteed only for L-version, 10 µA max. at Ta = –20 to +40°C.
2. This characteristic is guaranteed only for L-SL version, 5 µA max. at Ta = –20 to +40°C.
3. CS2 controls address buffer, WE buffer, CS1 buffer, OE buffer, LB, UB buffer and Din buffer. If
CS2 controls data retention mode, Vin levels (address, WE, OE, CS1, LB, UB, I/O) can be in the
high impedance state. If CS1 controls data retention mode, CS2 must be CS2 VCC – 0.2 V or 0 V
CS2 0.2 V. The other input levels (address, WE, OE, LB, UB, I/O) can be in the high
impedance state.
4. Typical values are at VCC = 3.0 V, Ta = +25˚C and not guaranteed.
5. tRC = read cycle time.
15
 

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