The Hitachi HM62V8512CI is a 4-Mbit static RAM organized 512-kword × 8-bit. HM62V8512CI Series has
realized higher density, higher performance and low power consumption by employing CMOS process
technology (6-transistor memory cell). The HM62V8512CI Series offers low power standby power
dissipation; therefore, it is suitable for battery backup systems. It is packaged in standard 32-pin TSOP II.
Recommended DC Operating Conditions (Ta = –40 to +85°C)
ParameterSymbolMinTypMaxUnit
Supply voltageV
Input high voltageV
Input low voltageV
CC
V
SS
IH
IL
Note:1. VIL min: –3.0 V for pulse half-width ≤ 30 ns.
4
2.73.03.6V
000V
2.4—VCC + 0.3V
*1
–0.3
—0.6V
Page 5
HM62V8512CI Series
DC Characteristics
ParameterSymbol MinTyp*1MaxUnit Test conditions
Input leakage current|I
Output leakage current|ILO|— — 1 µACS = VIH or OE = VIH or
Operating power
supply current: DC
Operating power supply currentI
Operating power
supply current
Standby power supply
current: DC
Standby power supply
current (1): DC
Output low voltageV
Output high voltageV
Notes: 1. Typical values are at VCC = 3.0 V, Ta = +25°C and specified loading, and not guaranteed.
2. This characteristics is guaranteed only for L-version.
|——1µAVin = VSS to V
LI
WE = V
I
CC
—510mACS = VIL,
others = V
CC1
—1530mAMin cycle, duty = 100%
CS = V
I
= 0 mA
I/O
I
CC2
—210mACycle time = 1 µs,
duty = 100%
I
= 0 mA, CS≤ 0.2 V
I/O
V
≥ VCC – 0.2 V,
IH
V
≤ 0.2 V
IL
I
SB
I
SB1
—0.10.3mACS = V
—0.8*
2
20*
2
µAVin ≥ 0 V,
CS≥ V
OL
——0.4VIOL = 2.0 mA
——0.2VIOL = 100 µA
OH
VCC – 0.2 ——VIOH = –100 µA
2.4——VIOH = –1.0 mA
CC
, V
= VSS to V
IL
I/O
, I
IH/VIL
, others = VIH/V
IL
IH
– 0.2 V
CC
= 0 mA
I/O
CC
IL
Capacitance (Ta = +25°C, f = 1 MHz)
ParameterSymbolTypMaxUnitTest conditions
Input capacitance*
1
Input/output capacitance*1C
Note:1. This parameter is sampled and not 100% tested.
Cin—8pFVin = 0 V
I/O
—10pFV
= 0 V
I/O
5
Page 6
HM62V8512CI Series
AC Characteristics (Ta = –40 to +85°C, VCC = 2.7 V to 3.6 V, unless otherwise noted.)
Test Conditions
• Input pulse levels: 0.4 V to 2.4 V
• Input rise and fall time: 5 ns
• Input timing reference levels: 1.4 V
• Output timing reference level: 0.8 V/2.0 V
• Output load (Including scope & jig)
Ω
Dout
500
50 pF
1.4 V
Read Cycle
HM62V8512CI
-7
ParameterSymbolMinMaxUnitNotes
Read cycle timet
Address access timet
Chip select access timet
Output enable to output validt
Chip selection to output in low-Zt
Output enable to output in low-Zt
Chip deselection to output in high-Zt
Output disable to output in high-Zt
Output hold from address changet
Write cycle timet
Chip selection to end of writet
Address setup timet
Address valid to end of writet
Write pulse widtht
Write recovery timet
WE to output in high-Zt
Data to write time overlapt
Data hold from write timet
Output active from output in high-Zt
Output disable to output in high-Zt
Notes: 1. tHZ, t
OHZ
and t
are defined as the time at which the outputs achieve the open circuit conditions and
WHZ
are not referred to output voltage levels.
2. This parameter is sampled and not 100% tested.
3. A write occurs during the overlap (t
WP
transition of CS going low or WE going low. A write ends at the earlier transition of CS going high
or WE going high. t
4. t
is measured from CS going low to the end of write.
CW
5. t
is measured from the address valid to the beginning of write.
AS
6. t
is measured from the earlier of WE or CS going high to the end of write cycle.
WR
is measured from the beginning of write to the end of write.
WP
7. During this period, I/O pins are in the output state so that the input signals of the opposite phase to
the outputs must not be applied.
8. If the CS low transition occurs simultaneously with the WE low transition or after the WE transition,
the output remain in a high impedance state.
9. Dout is the same phase of the write data of this write cycle.
10.Dout is the read data of next address.
11.If CS is low during this period, I/O pins are in the output state. Therefore, the input signals of the
opposite phase to the outputs must not be applied to them.
12.In the write cycle with OE low fixed, t
data bus contention. t
tDW min + t
WP
WC
CW
AS
AW
WP
WR
WHZ
DW
DH
OW
OHZ
) of a low CS and a low WE. A write begins at the later
must satisfy the following equation to avoid a problem of
Low VCC Data Retention Characteristics (Ta = –40 to +85°C)
HM62V8512CI Series
ParameterSymbol MinTypMaxUnitTest conditions*
VCC for data retentionV
Data retention currentI
Chip deselect to data retention time t
Operation recovery timet
DR
CCDR
CDR
R
2——V CS ≥ VCC – 0.2 V, Vin ≥ 0 V
—0.8*320*1µAVCC = 3.0 V, Vin ≥ 0 V
CS≥ V
– 0.2 V
CC
0——nsSee retention waveform
tRC*4—— ns
Notes: 1. For L-version and 10 µA (max.) at Ta = –40 to +40°C.
2. CS controls address buffer, WE buffer, OE buffer, and Din buffer. In data retention mode, Vin
levels (address, WE, OE, I/O) can be in the high impedance state.
3. Typical values are at V
4. t
= read cycle time.
RC
= 3.0 V, Ta = +25°C and specified loading, and not guaranteed.
CC
Low VCC Data Retention Timing Waveform (CS Controlled)
t
R
V
CC
2.7 V
t
CDR
Data retention mode
2
2.4 V
V
DR
CS
0 V
CS≥ VCC – 0.2 V
11
Page 12
HM62V8512CI Series
Package Dimensions
HM62V8512CLTTI Series (TTP-32D)
20.95
21.35 Max
32
Unit: mm
17
10.16
1
*0.42 ± 0.08
0.40 ± 0.06
1.15 Max
1.20 Max
*Dimension including the plating thickness
Base material dimension
0.21
0.10
1.27
M
16
*0.17 ± 0.05
0.125 ± 0.04
11.76 ± 0.20
0.13 ± 0.05
Hitachi Code
JEDEC
EIAJ
Mass
(reference value)
0° – 5°
0.80
0.50 ± 0.10
TTP-32D
Conforms
—
0.51 g
12
Page 13
HM62V8512CI Series
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual
property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of
bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic,
safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for
maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and
other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the
guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or
failure modes in semiconductor devices and employ systemic measures such as fail-safes, so that the
equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage
due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower,
World Finance Centre,
Harbour City, Canton Road
Tsim Sha Tsui, Kowloon,
Hong Kong
Tel : <852>-(2)-735-9218
Fax : <852>-(2)-730-0281
URL : http://www.hitachi.com.hk
Colophon 2.0
13
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