參數(shù)資料
型號: PALC16R8
廠商: Cypress Semiconductor Corp.
英文描述: Reprogrammable CMOS UV- Erasable Logic Devices(CMOS可重編程PLD器件)
中文描述: 再編程的CMOS紫外線擦除邏輯器件的CMOS(可重編程可編程邏輯器件)
文件頁數(shù): 1/1頁
文件大小: 65K
代理商: PALC16R8
Reprogrammable CMOS
PALC 16L8, 16R8, 16R6, 16R4
—100% programming and functional testing
fax id: 6004
PAL
C20 Series
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
June 1986 – Revised September 1995
1PAL
C20 Series
Features
CMOS EPROM technology for reprogrammability
High performance at quarter power
—t
PD
= 25 ns
—t
S
= 20 ns
—t
CO
= 15 ns
—I
CC
= 45 mA
High performance at military temperature
—t
PD
= 20 ns
—t
S
= 20 ns
—t
CO
= 15 ns
—I
CC
= 70 mA
Commercial and military temperature range
High reliability
—Proven EPROM technology
—>1500V input protection from electrostatic dis-
charge
—100% AC and DC tested
—10% power supply tolerances
—High noise immunity
—Security feature prevents pattern duplication
Functional Description
Cypress PALC20 Series devices are high- speed electrically
programmable and UV- erasable logic devices produced in a
proprietary N-well CMOS EPROM process. These devices uti-
lize a sum-of-products (AND-OR) structure providing users
with the ability to program custom logic functions serving
unique requirements.
PALs are offered in 20-pin plastic and ceramic DIP, plastic
SOJ, and ceramic LCC packages. The ceramic package can
be equipped with an erasure window; when exposed to UV
light, the PAL is erased and can then be reprogrammed.
Before programming, AND gates or product terms are con-
nected via EPROM cells to both true and complement inputs.
Programming an EPROM cell disconnects an input term from
a product term. Selective programming of these cells allows a
specific logic function to be implemented in a PALC device.
PALC devices are supplied in four functional configurations
designated 16R8, 16R6, 16R4, and 16L8. These 8 devices
have potentially 16 inputs and 8 outputs configurable by the
user. Output configurations of 8 registers, 8 combinatorial, 6
registers and 2 combinatorial as well as 4 registers and 4 com-
binatorial are provided by the 4 functional variations of the
product family.
PAL is a registered trademark of Advanced Micro Devices.
Logic Symbols and DIP and SOJ Pinouts
16R8
LCC Pinouts
C20–1
CP
I
I
I
I
I
I
V
SS
OE
V
CC
O
O
O
O
O
O
O
O
I
I
1
2
3
4
5
6
7
8
9
10
11
12
16
15
14
13
17
20
19
18
20
4
5
6
7
8
3 2 1
19
18
17
16
15
14
910111213
I
I
I
I
I
O
O
O
O
O
AND
OR
GATE
ARRAY
1
2
3
4
5
6
7
8
9
10
11
12
16
15
14
13
17
20
19
18
C20–2
CP
I
I
I
I
I
I
V
SS
OE
V
CC
I/O
O
O
O
O
O
O
I/O
I
I
16R6
AND
OR
GATE
ARRAY
1
2
3
4
5
6
7
8
9
10
11
12
16
15
14
13
17
20
19
18
C20–3
CP
I
I
I
I
I
I
V
SS
OE
V
CC
I/O
I/O
O
O
O
O
I/O
I/O
I
I
16R4
AND
OR
GATE
ARRAY
1
2
3
4
5
6
7
8
9
10
11
12
16
15
14
13
17
20
19
18
C20–4
I
I
I
I
I
I
I
V
SS
I
V
CC
O
I/O
I/O
I/O
I/O
I/O
I/O
O
I
I
16L8
AND
OR
GATE
ARRAY
C20–5
20
4
5
6
7
8
3 2 1
19
18
17
16
15
14
910111213
I
I
I
I
I
O
O
O
O
O
C20–6
20
4
5
6
7
8
3 2 1
19
18
17
16
15
14
910111213
I
I
I
I
I
I/O
O
O
O
O
C20–7
20
4
5
6
7
8
3 2 1
19
18
17
16
15
14
910111213
I
I
I
I
I
I/O
I/O
I/O
I/O
I/O
C20–8
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