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83C554 Datasheet(PDF) 13 Page - NXP Semiconductors

Part # 83C554
Description  80C51 8-bit microcontroller . 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP
PDF  76 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

83C554 Datasheet(HTML) 13 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary specification
80C554/83C554/87C554
80C51 8-bit microcontroller – 6 clock operation
16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM,
capture/compare, high I/O, 64L LQFP
2000 Nov 10
13
AUXR1
Reset Value = 0000 00x0B
ADC8
AIDL
SRST
GF2
WUPD
0
—
DSP
Not Bit Addressable
Bit:
Symbol
Function
DPS
Data Pointer Switch—switches between DPRT0 and DPTR1.
DPS
Operating Mode
0
DPTR0
1
DPTR1
WUPD
Enable wakeup from powerdown.
GF2
General Purpose Flag—set and cleared by the user.
SRST
Software Reset
AIDL
Enables the ADC during idle mode.
ADC8
ADC Mode Switch—switches between 10-bit conversion and 8-bit conversion.
ADC8
Operating Mode
0
10-bit conversion (50 machine cycles)
1
8-bit conversion (24 machine cycles)
NOTE:
*User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new features. In that
case, the reset or inactive value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is indeterminate.
SU01081
7654
321
0
Address = A2H
Figure 7. AUXR1: DPTR Control Register



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