MC68307V Datasheet, PDF (30/34 Pages) Motorola, Inc – Technical Summary Integrated Multiple-Bus Processor

PRELIMINARY UART ELECTRICAL SPECIFICATIONS
(V_CC = 5.0V ± 0.5V or 3.3Vdc ± 0.3V; GND = 0Vdc; T_A = T_L to T_H) (See Figures 17 and 18)
3.3 V
5V
Num
Characteristic
8 MHz
16.67 MHz
Unit
Min Max Min Max
1 TxD output valid from TxC low
—
700
—
350
ns
2 RxD data setup time to RxC high
480
—
240
—
ns
3 RxD data hold time from RxC high
400
—
200
—
ns
Clock
TxD
1 bit time
(1 or 16 clocks)
1
Figure 17. Transmitter Timing
Clock 1X
RxD
2
3
Figure 18. Receiver Timing
30
MC68307 TECHNICAL INFORMATION
MOTOROLA