P89LPC938 NXP Semiconductors, P89LPC938 Datasheet - Page 57

• Manufacturer Part Number: P89LPC938
• Description: The P89LPC938 is a single-chip microcontroller, available in low cost packages, based ona high performance processor architecture that executes instructions in two to four clocks,six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14051
Product data sheet
Fig 22. Shift register mode timing.
Fig 23. External clock timing.
write to SBUF
output data
input data
clear RI
11.1 Waveforms
clock
V
DD
t
0.45 V
QVXH
0.5 V
t
XHDV
0.2V
0.2V
valid
t
0
XLXL
DD
DD
0.1 V
t
XHDX
0.9 V
t
valid
XHQX
1
Rev. 01 — 25 February 2005
t
valid
CHCL
2
valid
3
t
CLCX
8-bit microcontroller with 10-bit A/D converter
valid
T
4
cy(CLK)
t
t
CLCH
CHCX
valid
5
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
valid
6
002aaa907
P89LPC938
valid
set TI
set RI
7
002aaa906
57 of 68