參數(shù)資料
型號(hào): TMS370C456A
廠商: Texas Instruments, Inc.
元件分類: 數(shù)學(xué)處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁(yè)數(shù): 43/54頁(yè)
文件大?。?/td> 785K
代理商: TMS370C456A
TMS370Cx9x
8-BIT MICROCONTROLLER
SPNS036B – JANUARY 1996 – REVISED FEBRUARY 1997
43
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
timing parameter symbology
Timing parameter symbols have been created in accordance with JEDEC Standard 100. In order to shorten the
symbols, some of the pin names and other related terminology have been abbreviated as follows:
A
AR
B
CI
D
E
FE
Address
Array
Byte
XTAL2/CLKIN
Data
EDS
Final
IE
PGM
R
SC
W
WT
Initial
Program
Read
SYSCLK
Write
WAIT
Lowercase subscripts and their meanings are:
c
d
f
h
cycle time (period)
delay time
fall time
hold time
r
su
v
w
rise time
setup time
valid time
pulse duration (width)
The following additional letters are used with these meanings:
H
L
V
Z
High
Low
Valid
High impedance
All timings are measured between high and low measurement points as indicated in Figure 17 and Figure 18.
0.8 V (Low)
2 V (High)
0.8 V (Low)
0.8 VCC V (High)
Figure 17. XTAL2/CLKIN Measurement Points
Figure 18. General Measurement Points
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