TI380C60 Datasheet, PDF (13/15 Pages) Texas Instruments – CMOS TOKEN-RING INTERFACE DEVICE

TI380C60
CMOS TOKENĆRING INTERFACE DEVICE
SPWS015B − APRIL 1995 − REVISED OCTOBER 1996
clock and data switching characteristics over recommended range of supply voltage,
t_c(XT1) = 125 ns (see Figure 6)
tc(XT1)
tw(OSC32H)
tw(OSC32L)
Cycle time of clock applied to XT1
Pulse duration, OSC32 high
Pulse duration, OSC32 low
tw(PXTALL) Pulse duration, PXTAL low
tw(PXTALH) Pulse duration, PXTAL high
tw(RCLKL) Pulse duration, RCLK low
tw(RCLKH)
tsu(RCVR)
th(RCVR)
Pulse duration, RCLK high
Setup time, RCVR valid to RCLK rising edge
Hold time, RCVR valid after RCLK rising edge
TEST CONDITIONS
16-Mbps mode
4-Mbps mode
16-Mbps mode
4-Mbps mode
16-Mbps mode
4-Mbps mode
16-Mbps mode
4-Mbps mode
16-Mbps mode
16-Mbps mode
MIN TYP MAX UNIT
125
ns
10
ns
12
ns
12
ns
46
ns
10
ns
46
ns
12
ns
46
ns
10
ns
46
ns
18
ns
2.5
ns
PXTAL
tw(PXTALH)
tw(PXTALL)
2V
0.8 V
OSC32
tw(OSC32H)
tw(OSC32L)
2V
0.8 V
RCLK
tw(RCLKH)
tw(RCLKL)
tsu(RCVR)
2V
0.8 V
RCVR
th(RCVR)
Figure 6. PXTAL, OSC32, RCLK, and RCVR Timing
2V
0.8 V
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