參數(shù)資料
型號(hào)： TIBPAL20L8-20MW
廠商： Texas Instruments, Inc.
英文描述： HIGH-PERFORMANCE IMPACT E PAL CIRCUITS
中文描述： 高性能影響的位置PAL制式電路
文件頁(yè)數(shù)： 13/17頁(yè)
文件大?。?/td> 184K
代理商： TIBPAL20L8-20MW
TIBPAL20L8-15C, TIBPAL20R4-15C, TIBPAL20R6-15C, TIBPAL20R8-15C
TIBPAL20L8-20M TIBPAL20R4-20M TIBPAL20R6-20M TIBPAL20R8-20M
HIGH-PERFORMANCE
IMPACT
PAL
CIRCUITS
SRPS021 – D2920, JUNE 1986 – REVISED AUGUST 1989
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
13
programming information
Texas Instruments programmable logic devices can be programmed using widely available software and
inexpensive device programmers.
Complete programming specifications, algorithms, and the latest information on hardware, software, and
firmware are available upon request. Information on programmers capable of programming Texas Instruments
programmable logic is also available, upon request, from the nearest TI field sales office, local authorized TI
distributor, or by calling Texas Instruments at (214) 997-5666.
preload procedure for registered outputs (see Figure 1 and Notes 2 and 3)
The output registers can be preloaded to any desired state during device testing. This permits any state to be
tested without having to step through the entire state-machine sequence. Each register is preloaded individually
by following the steps given below.
Step 1.
Step 2.
Step 3.
Step 4.
With V
CC
at 5 volts and Pin 1 at V
IL
, raise Pin 13 to V
IHH
.
Apply either V
IL
or V
IH
to the output corresponding to the register to be preloaded.
Pulse Pin 1, clocking in preload data.
Remove output voltage, then lower Pin 13 to V
IL
. Preload can be verified by observing the
voltage level at the output pin.
td
tsu
tw
td
VIHH
VIL
VIL
VOL
VOH
VIH
Pin 13
Pin 1
Registered I/O
Input
Output
VIH
VIL
Figure 1. Preload Waveforms
NOTES: 2. Pin numbers shown are for JT, NT, and W packages only. If chip carrier socket adapter is not used, pin numbers must be changed
accordingly.
3. td = tsu = th = 100 ns to 1000 ns VIHH = 10.25 V to 10.75 v
相關(guān)PDF資料
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TIBPAL20R4-15CJT HIGH-PERFORMANCE IMPACT E PAL CIRCUITS
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