Obsolete Device
27C64
64K (8K x 8) CMOS EPROM
FEATURES
鈥?High speed performance
- 120 ns access time available
鈥?CMOS Technology for low power consumption
- 20 mA Active current
- 100
碌A
Standby current
鈥?Factory programming available
鈥?Auto-insertion-compatible plastic packages
鈥?Auto ID aids automated programming
鈥?Separate chip enable and output enable controls
鈥?High speed 鈥渆xpress鈥?programming algorithm
鈥?Organized 8K x 8: JEDEC standard pinouts
- 28-pin Dual-in-line package
- 32-pin PLCC Package
- 28-pin SOIC package
- Tape and reel
鈥?Available for the following temperature ranges
- Commercial:
0擄C to +70擄C
- Industrial:
-40擄C to +85擄C
PACKAGE TYPES
DIP/SOIC
V
PP
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
V
SS
鈥?
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
PGM
NC
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
27C64
PLCC
A7
A12
V
PP
NU
Vcc
PGM
NC
32
31
DESCRIPTION
The Microchip Technology Inc. 27C64 is a CMOS 64K
bit (electrically) Programmable Read Only Memory.
The device is organized as 8K words by 8 bits (8K
bytes). Accessing individual bytes from an address
transition or from power-up (chip enable pin going low)
is accomplished in less than 120 ns. CMOS design and
processing enables this part to be used in systems
where reduced power consumption and high reliability
are requirements.
A complete family of packages is offered to provide the
most flexibility in applications. For surface mount appli-
cations, PLCC or SOIC packaging is available. Tape
and reel packaging is also available for PLCC or SOIC
packages.
A6
A5
A4
A3
A2
A1
A0
NC
O0
30
4
3
2
1
5
6
29
28
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
O7
O6
17
18
19
餂?/div>
2004 Microchip Technology Inc.
O1
O2
V
SS
NU
O3
O4
O5
20
27C64
DS11107M-page 1
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