TI380C60A Datasheet, PDF (14/16 Pages) Texas Instruments – CMOS TOKEN-RING INTERFACE DEVICE

TI380C60A
CMOS TOKEN-RING INTERFACE DEVICE
SPWS033 – DECEMBER 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) Pulse duration, RCLK high
tsu(RCVR)
th(RCVR)
Setup time, RCVR valid to RCLK rising edge
Hold time, RCVR valid after RCLK rising edge
tw(PXTALH)
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
tw(PXTALL)
PXTAL
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
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
14
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