HM62256BLP-8 Renesas Electronics America, HM62256BLP-8 Datasheet

HM62256BLP-8

Manufacturer Part Number
HM62256BLP-8
Description
Manufacturer
Renesas Electronics America
Datasheet

Specifications of HM62256BLP-8

Density
256Kb
Access Time (max)
85ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
15b
Package Type
PDIP
Operating Temp Range
0C to 70C
Number Of Ports
1
Supply Current
50mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
28
Word Size
8b
Number Of Words
32K
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HM62256BLP-8
Manufacturer:
HM
Quantity:
6 222
Part Number:
HM62256BLP-8
Manufacturer:
HIT
Quantity:
200
Part Number:
HM62256BLP-8
Manufacturer:
HITACHI
Quantity:
1 000
Part Number:
HM62256BLP-8
Manufacturer:
HITACHI/日立
Quantity:
20 000
Description
The Hitachi HM62256B is a CMOS static RAM organized 32-kword
performance and low power consumption by employing 0.8 m Hi-CMOS process technology. The
device, packaged in 8
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 back-up systems.
Features
High speed
Fast access time: 45/55/70/85 ns (max)
Low power
Standby: 1.0 W (typ)
Operation: 25 mW (typ) (f = 1 MHz)
Single 5 V supply
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
Capability of battery back up operation
32,768-word
14 mm TSOP, 8
HM62256B Series
8-bit High Speed CMOS Static RAM
13.4 mm TSOP with thickness of 1.2 mm, 450-mil SOP (foot
8-bit. It realizes higher
ADE-203-135D (Z)
Nov. 29, 1995
Rev. 4.0

Related parts for HM62256BLP-8

HM62256BLP-8 Summary of contents

Page 1

HM62256B Series 32,768-word Description The Hitachi HM62256B is a CMOS static RAM organized 32-kword performance and low power consumption by employing 0.8 m Hi-CMOS process technology. The device, packaged TSOP, 8 print pitch width), 600-mil plastic ...

Page 2

... HM62256B Series Ordering Information Type No. Access Time Package HM62256BLP HM62256BLP-7SL 70 ns HM62256BLSP HM62256BLSP-7SL 70 ns HM62256BLFP- HM62256BLFP-4SLT 45 ns HM62256BLFP-5SLT 55 ns HM62256BLFP-7SLT 70 ns HM62256BLFP-7ULT 70 ns HM62256BLT HM62256BLT-7SL 70 ns HM62256BLTM HM62256BLTM-4SL 45 ns HM62256BLTM-5SL 55 ns HM62256BLTM-7SL 70 ns HM62256BLTM-7UL 70 ns Note: 1. Under development 600-mil 28-pin plastic DIP (DP-28) ...

Page 3

... Pin Arrangement HM62256BLP/BLFP/BLSP Series 1 28 A14 2 27 A12 (Top View) Pin Description Symbol Function A0 – A14 Address I/O0 – I/O7 Input/output CS Chip select WE Write enable OE Output enable NC No connection V Power supply CC V Ground SS HM62256BLT Series A11 A13 A13 A11 A14 ...

Page 4

HM62256B Series Block Diagram (MSB) A12 A5 A7 • • A6 • A8 • • A13 • • A14 A4 (LSB) A3 I/O0 • • • • • • • • • • I/ Function Table WE ...

Page 5

Absolute Maximum Ratings Parameter *1 Power supply voltage *1 Terminal voltage Power dissipation Operating temperature Storage temperature Storage temperature under bias Notes: 1. Relative min: –3.0 V for pulse half-width T 3. Maximum voltage is ...

Page 6

HM62256B Series DC Characteristics ( + Parameter Input leakage current Output leakage current Operating power supply current Average operating HM62256B-4 I power supply current HM62256B-5 I HM62256B-7 I HM62256B-8 I Standby power supply current Output ...

Page 7

AC Characteristics ( + Test Conditions Input pulse levels: 0 2.4 V Input rise and fall times Input and output timing reference level: 1.5 V Output load: HM62256B-4: HM62256B-5: HM62256B-7/8: 1 ...

Page 8

HM62256B Series Read Timing Waveform ( (1) WE Address CS OE High impedance Dout Read Timing Waveform ( (2) WE Address t OH Dout = Valid address ACS OLZ =V ...

Page 9

Read Timing Waveform ( ( CLZ High impedance Dout Note: 1. Address must be valid prior to or simultaneously with CS going low ACS Valid data 9 HM62256B ...

Page 10

HM62256B Series Write Cycle Parameter Write cycle time Chip selection to end of write Address setup time Address valid to end of write Write pulse width Write recovery time WE to output in high-Z Data to write time overlap Data ...

Page 11

Write Timing Waveform ( Address Dout High impedance Din If CS goes low simultaneously with WE going low or after WE going low, Note: 1. the outputs remain in the high impedance state. Clock) ...

Page 12

HM62256B Series Write Timing Waveform ( Address Dout High impedance Din Notes goes low simultaneously with WE going low or after WE going low, the outputs remain in the high impedance ...

Page 13

Low V Data Retention Characteristics ( + Parameter V for data retention CC Data retention current Chip deselect to data retention time t Operation recovery time Notes: 1. Typical values are ...

Page 14

... HM62256B Series Package Dimensions HM62256BLP Series (DP-28) 35.60 36.50 Max 28 1 1.20 1.90 Max 2.54 ± 0.25 HM62256BLSP Series (DP-28NA) 37.32 Max 28 1 1.3 2.2 Max 2.54 ± 0. 0.48 ± 0.10 36 0.48 ± 0.10 14 Unit: mm 15.24 + 0.11 0.25 – 0.05 0° – 15° ...

Page 15

HM62256BLFP Series (FP-28DA) 18.00 18.75 Max 28 1 1.27 Max 1.27 ± 0.10 HM62256BLT Series (TFP-32DA) 8.00 8.20 Max 32 1 0.50 0.20 ± 0.10 0.08 0.45 Max 0. 0.10 0.40 – 0. 14.00 ...

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