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HM62256BLFP-7SLTのメーカーはHitachi Semiconductorです、この部品の機能は「256k SRAM (32-kword x 8-bit)」です。 |
部品番号 | HM62256BLFP-7SLT |
| |
部品説明 | 256k SRAM (32-kword x 8-bit) | ||
メーカ | Hitachi Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとHM62256BLFP-7SLTダウンロード(pdfファイル)リンクがあります。 Total 20 pages
HM62256B Series
256k SRAM (32-kword × 8-bit)
ADE-203-135F (Z)
Rev. 6.0
Nov. 13, 1997
Description
The Hitachi HM62256B Series is a CMOS static RAM organized 32,768-word × 8-bit. It realizes higher
performance and low power consumption by employing 0.8 µm Hi-CMOS process technology. The
device, packaged in 8 × 14 mm TSOP, 8 × 13.4 mm TSOP with thickness of 1.2 mm, 450 mil SOP (foot
print pitch width), 600 mil plastic DIP, or 300 mil plastic DIP, is available for high density mounting. It
offers low power standby power dissipation; therefore, it is suitable for battery backup systems.
Features
• Single 5.0 V supply: 5.0 V ± 10%
• Access time: 55 ns/70 ns/85 ns (max)
• Power dissipation:
Active: 25 mW (typ) (f = 1 MHz)
Standby: 1.0 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
1 Page Pin Arrangement (cont.)
HM62256B Series
OE 1
A11 2
NC 3
A9 4
A8 5
A13 6
WE 7
VCC
8
A14 9
A12 10
A7 11
A6 12
A5 13
NC 14
A4 15
A3 16
OE 22
A11 23
A9 24
A8 25
A13 26
WE 27
VCC 28
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
HM62256BLT Series
(Top view)
HM62256BLTM Series
(Top view)
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
21
20
19
18
17
16
15
14
13
12
11
10
9
8
A10
CS
NC
I/O7
I/O6
I/O5
I/O4
I/O3
VSS
I/O2
I/O1
I/O0
A0
NC
A1
A2
A10
CS
I/O7
I/O6
I/O5
I/O4
I/O3
VSS
I/O2
I/O1
I/O0
A0
A1
A2
Pin Description
Pin Name
A0 to A14
I/O0 to I/O7
CS
WE
OE
VCC
VSS
NC
Function
Address input
Data input/output
Chip select
Write enable
Output enable
Power supply
Ground
No connection
3
3Pages HM62256B Series
DC Characteristics (Ta = 0 to +70°C, VCC = 5 V ± 10%, VSS = 0 V)
Parameter
Symbol Min
Typ*1 Max Unit Test conditions
Input leakage current |ILI| — — 1
µA Vin = VSS to VCC
Output leakage current |ILO| — — 1
µA CS = VIH or OE = VIH or WE = VIL,
VI/O = VSS to VCC
Operating current
ICC — 6
15 mA CS = VIL, Others = VIH/VIL,
II/O = 0 mA
Average HM62256B-5 ICC1
—
—
60 mA Min cycle, duty = 100%,II/O = 0 mA,
operating
CS = VIL, Others = VIH/VIL
current
HM62256B-7 ICC1
—
33
60
mA
HM62256B-8 ICC1
—
29
50
mA
I CC2
—
5
15 mA Cycle time = 1 µs, II/O = 0 mA,
CS = VIL, VIH = VCC, VIL = 0
Standby current
ISB — 0.3 2
mA CS = VIH
ISB1 —
0.2 100 µA Vin ≥ 0 V, CS ≥ VCC – 0.2 V
ISB1 —
0.2*2
50*2
µA
ISB1 —
0.2*3
10*3
µA
Output low voltage
VOL — — 0.4 V IOL = 2.1 mA
Output high voltage
VOH 2.4 — — V IOH = –1.0 mA
Notes: 1. Typical values are at VCC = 5.0 V, Ta = +25°C and not guaranteed.
2. This characteristic is guaranteed only for L-SL version.
3. This characteristic is guaranteed only for L-UL version.
Capacitance (Ta = 25°C, f = 1.0 MHz)
Parameter
Symbol Min Typ
Input capacitance*1
Cin — —
Input/output capacitance*1
CI/O — —
Note: 1. This parameter is sampled and not 100% tested.
Max
8
10
Unit
pF
pF
Test Conditions
Vin = 0 V
VI/O = 0 V
6
6 Page | |||
ページ | 合計 : 20 ページ | ||
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PDF ダウンロード | [ HM62256BLFP-7SLT データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
HM62256BLFP-7SLT | 256k SRAM (32-kword x 8-bit) | Hitachi Semiconductor |