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參數(shù)資料
| 型號： | PLC18V8Z35DH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | PLD |
| 英文描述： | Zero standby power CMOS versatile PAL devices |
| 中文描述： | OT PLD, 35 ns, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, MO-153AC, SOT-360-1, TSSOP-20 |
| 文件頁數(shù)： | 6/23頁 |
| 文件大?。?/td> | 225K |
| 代理商： | PLC18V8Z35DH |
Philips Semiconductors
Product specification
PLC18V8Z
Zero standby power
CMOS versatile PAL devices
1997 Aug 08
6
OUTPUT MACRO CELL (OMC)
OE
MUX
1
11
CLK
Q
OE
D
F
00
11
10
01
OUT
MUX
10
00
01
11
F
MUX
00
10
11
01
V
CC
OUTPUT
POLARITY
CONTROL
FROM
AND
ARRAY
S
X
(n)
DIRECTION CONTROL TERM
TO ALL OMCs
TO ALL OMCs
{
AC1
n
AC2
n
NOTE:
Denotes a programmable cell location.
FROM AND
ARRAY
S
A
SP00014
THE OUTPUT MACRO CELL (OMC)
The PLC18V8Z series devices have 8 individually programmable
Output Macro Cells. The 72 AND inputs (or product terms) from the
programmable AND array are connected to the 8 OMCs in groups of
9. Eight of the AND terms are dedicated to logic functions; the ninth
is for asynchronous direction control, which enables/disables the
respective bidirectional I/O pin. Two product terms are dedicated for
the Synchronous Preset and Asynchronous Reset functions.
Each OMC can be independently programmed via 16 architecture
control bits, AC1
n
and AC2
n
(one pair per macro cell). Similarly,
each OMC has a programmable output polarity control bit (Xn). By
configuring the pair of architecture control bits according to the
configuration cell table, 4 different configurations may be
implemented. Note that the configuration cell is automatically
programmed based on the OMC configuration.
DESIGN SECURITY
The PLC18V8Z series devices have a programmable security fuse
that controls the access to the data programmed in the device. By
using this programmable feature, proprietary designs implemented
in the device cannot be copied or retrieved.
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