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PDF HM6207H Data sheet ( Hoja de datos )
| Número de pieza | HM6207H | |
| Descripción | 256K High Speed SRAM | |
| Fabricantes | Hitachi | |
| Logotipo |  |
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HM6207H Series
256 k High Speed SRAM (256-kword × 1-bit)
Features
• Single 5 V supply and high density 24-pin package
• High speed
Access time: 25/35/45 ns (max)
• Low power
Operation: 300 mW (typ)
Standby: 100 µW (typ)
30 µW (typ) (L-version)
• Completely static memory required, no clock or timing strobe required
• Equal access and cycle time
• Directly TTL compatible, all inputs and outputs
• Battery backup operation capability (L-version)
Ordering Information
Type No.
HM6207HP-25
HM6207HP-35
HM6207HP-45
HM6207HLP-25
HM6207HLP-35
HM6207HLP-45
HM6207HJP-25
HM6207HJP-35
HM6207HJP-45
HM6207HLJP-25
HM6207HLJP-35
HM6207HLJP-45
Access Time
25 ns
35 ns
45 ns
25 ns
35 ns
45 ns
25 ns
35 ns
45 ns
25 ns
35 ns
45 ns
Package
300-mil 24-pin plastic DIP (DP-24NC)
300-mil 24-pin SOJ (CP-24D)
1 page  
HM6207H Series
AC Characteristics (Ta = 0 to +70°C, VCC = 5 V ± 10% unless otherwise noted)
Test Conditions
• Input pulse levels: VSS to 3.0 V
• Input and output timing reference levels: 1.5 V
• Input rise and fall time: 5 ns
• Output load: See figures
Dout
255 Ω
+5V
480 Ω
30 pF *1
Dout
255 Ω
+5V
480 Ω
5 pF *1
Output load (A)
Output load (B)
(tHZ , tLZ, tWZ, and tOW)
Note: 1. Including scope and jig
Read Cycle
HM6207H-25
HM6207H-35
Parameter
Symbol Min Max Min Max
Read cycle time
t
25 —
35 —
RC
Address access time
t — 25 — 35
AA
Chip select access time
tACS — 25 — 35
Output hold from address change
tOH
5 —5—
Chip selection to output in low-Z
t *1
LZ
5
—5—
Chip deselection to output in high-Z
t *1
HZ
0
15 0 20
Note: 1. Transition is measured ± 200 mV from steady-state voltage with Load (B).
These parameters are sampled and not 100% tested.
HM6207H-45
Min Max Unit
45 —
ns
— 45
ns
— 45
ns
5—
ns
5—
ns
0 20
ns
5
5 Page 
HM6207H Series
When using this document, keep the following in mind:
1. This document may, wholly or partially, be subject to change without notice.
2. All rights are reserved: No one is permitted to reproduce or duplicate, in any form, the whole or part of
this document without Hitachi’s permission.
3. Hitachi will not be held responsible for any damage to the user that may result from accidents or any other
reasons during operation of the user’s unit according to this document.
4. Circuitry and other examples described herein are meant merely to indicate the characteristics and
performance of Hitachi’s semiconductor products. Hitachi assumes no responsibility for any intellectual
property claims or other problems that may result from applications based on the examples described
herein.
5. No license is granted by implication or otherwise under any patents or other rights of any third party or
Hitachi, Ltd.
6. MEDICAL APPLICATIONS: Hitachi’s products are not authorized for use in MEDICAL
APPLICATIONS without the written consent of the appropriate officer of Hitachi’s sales company. Such
use includes, but is not limited to, use in life support systems. Buyers of Hitachi’s products are requested to
notify the relevant Hitachi sales offices when planning to use the products in MEDICAL
APPLICATIONS.
Hitachi, Ltd.
Semiconductor & IC Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100, Japan
Tel: Tokyo (03) 3270-2111
Fax: (03) 3270-5109
For further information write to:
Hitachi America, Ltd.
Hitachi Europe GmbH
Semiconductor & IC Div.
Electronic Components Group
2000 Sierra Point Parkway
Continental Europe
Brisbane, CA. 94005-1835
Dornacher Straße 3
USA
D-85622 Feldkirchen
Tel: 415-589-8300
München
Fax: 415-583-4207
Tel: 089-9 91 80-0
Fax: 089-9 29 30 00
Hitachi Europe Ltd.
Electronic Components Div.
Northern Europe Headquarters
Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire SL6 8YA
United Kingdom
Tel: 0628-585000
Fax: 0628-778322
Hitachi Asia Pte. Ltd.
16 Collyer Quay #20-00
Hitachi Tower
Singapore 0104
Tel: 535-2100
Fax: 535-1533
Hitachi Asia (Hong Kong) Ltd.
Unit 706, North Tower,
World Finance Centre,
Harbour City, Canton Road
Tsim Sha Tsui, Kowloon
Hong Kong
Tel: 27359218
Fax: 27306071
11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet HM6207H.PDF ] | |
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