HN27C256AG-10 PDF даташит
Спецификация HN27C256AG-10 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «32768-word x 8-bit UV Erasable and Programmable ROM». |
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Детали детали
Номер произв | HN27C256AG-10 |
Описание | 32768-word x 8-bit UV Erasable and Programmable ROM |
Производители | Hitachi Semiconductor |
логотип |
16 Pages
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HN27C256AG Series
32768-word × 8-bit UV Erasable and Programmable ROM
Maintenance only
Description
This Hitachi HN27C256AG is a 256-kbit ultraviolet erasable and electrically programmable ROM, featuring
high speed and low power dissipation. Fabricated on advanced fine process and high speed circuitry
technique, the HN27C256AG makes high speed access time possible for 16 bit microprocessors such as the
8086 and 68000. And low power dissipation in active and standby modes matches our CMOS 256-kbit
EPROM. In programming operation, the HN27C256AG realizes faster programming times than our
conventional 256-kbit EPROM by Hitachi’s Fast High-Reliability Programming Algorithm. Pin arrangement,
pin configuration and programming voltage are compatible with our 256-kbit EPROM series, therefore
existing programmers can be used with the HN27C256AG.
Features
• High speed
Access time: 100/120/150 ns (max)
• Low power dissipation
Active mode: 25 mW (typ) (f = 1 MHz)
Standby mode: 5 µW (typ)
• High reliability and fast programming
Programming voltage: +12.5 V DC
Fast High-Reliability Programming Algorithm available
• Device identifier mode
Manufacturer code and device code
Ordering Information
Type No.
HN27C256AG-10
HN27C256AG-12
HN27C256AG-15
Access Time
100 ns
120 ns
150 ns
Package
600-mil 28-pin cerdip (DG-28)
Note: This device is not available for new application.
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HN27C256AG Series
Pin Arrangement
VPP 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
I/O0 11
I/O1 12
I/O2 13
VSS 14
28 VCC
27 A14
26 A13
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 I/O7
18 I/O6
17 I/O5
16 I/O4
15 I/O3
(Top View)
Pin Description
Pin Name
A0 – A14
I/O0 – I/O7
CE
OE
VCC
VPP
VSS
Function
Address
Input/output
Chip enable
Output enable
Power supply
Programming power supply
Ground
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Block Diagram
A4 – A9
A12 – A14
Address
I/O0
I/O7
CE
OE
VCC
VPP
VSS
H
HN27C256AG Series
512 × 512
Memory Matrix
Y-Gating
Y-Decoder
A0 – A3
A10, A11
H : High Threshold Inverter
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Номер в каталоге | Описание | Производители |
HN27C256AG-10 | 32768-word x 8-bit UV Erasable and Programmable ROM | Hitachi Semiconductor |
HN27C256AG-12 | 32768-word x 8-bit UV Erasable and Programmable ROM | Hitachi Semiconductor |
HN27C256AG-15 | 32768-word x 8-bit UV Erasable and Programmable ROM | Hitachi Semiconductor |
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