參數(shù)資料
型號: TPS65920BZCHR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數(shù): 110/115頁
文件大小: 1232K
代理商: TPS65920BZCHR
SWCS037G
– MAY 2008 – REVISED APRIL 2011
12
Timing Requirements and Switching Characteristics
12.1 Timing Parameters
The timing parameter symbols used in the timing requirement and switching characteristic tables are
created in accordance with JEDEC Standard 100. To shorten the symbols, some pin names and other
related terminologies are abbreviated, as shown in Table 12-1.
Table 12-1. Timing Parameters
Subscripts
Symbol
Parameter
c
Cycle time (period)
d
Delay time
dis
Disable time
en
Enable time
h
Hold time
su
Setup time
START
Start bit
t
Transition time
v
Valid time
w
Pulse duration (width)
X
Unknown, changing, or don't care level
H
High
L
Low
V
Valid
IV
Invalid
AE
Active edge
FE
First edge
LE
Last edge
Z
High impedance
94
Timing Requirements and Switching Characteristics
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
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