參數(shù)資料
型號(hào): P87C554
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-bit microcontroller(80C51 8位微控制器)
中文描述: 80C51的8位微控制器(80C51的8位微控制器)
文件頁數(shù): 71/78頁
文件大?。?/td> 393K
代理商: P87C554
Philips Semiconductors
Preliminary specification
80C554/83C554/87C554
80C51 8-bit microcontroller
16K/512 OTP/ROM/ROMless, 8 channel 10 bit A/D, I
2
C, PWM,
capture/compare, high I/O
1999 Apr 07
71
16
12
8
4
12
4
16
8
f (MHz)
I
DD
mA
20
0
0
SU01116
MAXIMUM ACTIVE MODE
TYPICAL ACTIVE MODE
MAXIMUM IDLE MODE
TYPICAL IDLE MODE
Figure 57. 16MHz Version Supply Current (I
DD
) as a Function of Frequency at XTAL1 (f
OSC
)
V
DD
P0
EA
RST
XTAL1
XTAL2
V
SS
V
DD
V
DD
V
DD
I
DD
(NC)
CLOCK SIGNAL
V
DD
P1.6
P1.7
STADC
AV
SS
AV
ref–
EW
SU00218
Figure 58. I
DD
Test Condition, Active Mode
All other pins are disconnected
1
1. Active Mode:
a. The following pins must be forced to V
DD
: EA, RST, Port 0, and EW.
b. The following pins must be forced to V
SS
: STADC, AV
ss
, and AV
ref–
.
c. Ports 1.6 and 1.7 should be connected to V
DD
through resistors of sufficiently high value such that the sink current into these pins
cannot exceed the I
OL1
spec of these pins.
d. The following pins must be disconnected: XTAL2 and all pins not specified above.
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