參數(shù)資料
型號(hào): P83C654X2
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-bit microcontroller family 16 kB OTP/ROM, 256B RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz)
中文描述: 80C51的8位單片機(jī)系列16kB的檢察官辦公室/光盤(pán),256B的RAM,低電壓(2.7至5.5 V),低功耗,高速(三十三分之三十〇兆赫)
文件頁(yè)數(shù): 75/88頁(yè)
文件大小: 497K
代理商: P83C654X2
Philips Semiconductors
Product data
P83C654X2/P87C654X2
80C51 8-bit microcontroller family
16 kB OTP/ROM,
256B RAM, low voltage (2.7 to 5.5 V), low power, high speed
(30/33 MHz)
2004 Apr 20
75
t
LLAX
ALE
PSEN
PORT 0
PORT 2
WR
A0–A7
FROM RI OR DPL
DATA OUT
A0–A7 FROM PCL
INSTR IN
P2.0–P2.7 OR A8–A15 FROM DPF
A0–A15 FROM PCH
t
WHLH
t
LLWL
t
WLWH
t
AVLL
t
AVWL
t
QVWX
t
WHQX
t
QVWH
SU00026
Figure 43. External Data Memory Write Cycle
SU01742
0.3 VDD
SDA
(INPUT/OUTPUT)
SCL
(INPUT/OUTPUT)
0.7 VDD
t
SP
START or repeated START condition
repeated START condition
STOP condition
START condition
0.7 V
DD
0.3 V
DD
t
SU;DAT3
t
SU;DAT2
t
SU; STO
t
HD;STA
t
LOW
t
HIGH
t
SU;DAT1
t
HD;DAT
t
BUF
t
SU;STA
t
RD
t
RC
t
FC
t
FD
Figure 44. Timing I
2
C interface
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