參數(shù)資料
型號: P89LPC921
廠商: NXP Semiconductors N.V.
英文描述: MINIATURE POWER RELAY
中文描述: 8位微控制器兩個小時80C51的核心2鍵盤/ 4 KB的/ 8 KB的3伏的低功耗Flash 256 - RAM的字節(jié)數(shù)據(jù)
文件頁數(shù): 37/45頁
文件大小: 877K
代理商: P89LPC921
Philips Semiconductors
P89LPC920/921/922
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 06 — 21 November 2003
37 of 45
9397 750 12285
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
Fig 12. Shift register mode timing.
0
1
2
3
4
5
6
7
Valid
Valid
Valid
Valid
Valid
Valid
Valid
Valid
tXLXL
002aaa425
Set TI
Set RI
tXHQX
tQVXH
tXHDV
tXHDX
Clock
Output Data
Write to SBUF
Input Data
Clear RI
Fig 13. External clock timing.
tCHCL
tCLCX
tCHCX
tC
tCLCH
002aaa416
0.2 VDD + 0.9
0.2 VDD - 0.1 V
VDD - 0.5 V
0.45 V
Table 10:
V
DD
= 2.4 V to 3.6 V unless otherwise specified.
T
amb
=
40
°
C to +85
°
C for industrial, unless otherwise specified.
Symbol
Parameter
t
VR
RST delay from V
DD
active
t
RH
RST HIGH time
t
RL
RST LOW time
AC characteristics, ISP entry mode
Conditions
Min
50
1
1
Typ
-
-
-
Max
-
32
-
Unit
μ
s
μ
s
μ
s
Fig 14. ISP entry waveform.
002aaa426
VDD
RST
tRL
tVR
tRH
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