P89C738ABB View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'P89C738ABB' PDF : 64 Pages View PDF
Philips Semiconductors
8-bit Flash microcontrollers
Product specification
P89C738; P89C739
21.1 Serial Port characteristics
Table 36 Serial Port timing: Shift Register mode
VDD = 5 V ±10%; VSS = 0 V; Tamb = 0 to 70 °C; load capacitance = 80 pF.
SYMBOL
tXLXL
tQVXH
tXHQX
tXHDX
tXHDV
PARAMETER
12 MHz
OSCILLATOR
MIN.
MAX.
Serial Port clock cycle time
1
−
output data set-up to clock rising edge 700
−
output data hold after clock rising edge 50
−
input data hold after clock rising edge 0
−
clock rising edge to input data valid −
700
VARIABLE OSCILLATOR
MIN.
12tclk
10tclk − 133
2tclk − 117
0
−
MAX.
−
−
−
−
10tclk − 133
UNIT
µs
ns
ns
ns
ns
handbook, fuINll SpaTgRewUidCthTION
0
ALE
CLOCK
OUTPUT DATA
WRITE TO SBUF
INPUT DATA
CLEAR RI
1
2
3
4
5
6
7
8
t XLXL
t QVXH
t XHQX
tXHDV
tXHDX
VALID
VALID
VALID
VALID
VALID
VALID
VALID
MGA179
SET TI
VALID
SET RI
Fig.32 Shift register mode timing.
1998 Apr 07
57
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