sc26c94 NXP Semiconductors, sc26c94 Datasheet - Page 25
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sc26c94
Manufacturer Part Number
sc26c94
Description
Quad Universal Asynchronous Receiver/transmitter Quart
Manufacturer
NXP Semiconductors
Datasheet
1.SC26C94.pdf
(33 pages)
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Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS
Commercial/Industrial temperature range. Single numbers apply to both ranges.
NOTE:
1. Consecutive write operations to the upper four bits of the Command Register (CR) require at least three X1/CLK edges; four X1/CLK edges
1995 May 1
NO.
NO.
1
2
3
4
5
Quad universal asynchronous receiver/transmitter (QUART)
in the ‘X1/CLK divide by 2 edges’ according to register 2E or 2F setting.
NOTE: Rise time of IRQN is dependent on external circuit.
DACKN
FIGURE
FIGURE
IACKN
D[7:0]
IRQN
EVAL/HOLD
3
3
3
3
3
OSC/N
IACKN
CIR
D[7:0] Valid after IACKN Low
DACKN Low after IACKN Low
D[7:0] floating after IACKN High
DACKN High after IACKN High
IACKN High after IACKN Low
CHARACTERISTIC
CHARACTERISTIC
1
Figure 3. Interrupt Knowledge (IACKN) Timing
Figure 4. Interrupt Bid Arbitration Timing
T
A
= 25 C; V
2
CC
= 5V
VALUE FOR THIS INTERRUPT
25
5
10%, unless otherwise specified. Limits shown as nn/nn refer to
X1 edges
110/115
10 + 2
Min
0
0
1
LIMITS
Typ
3
4
90/122 + 3
X1 edges
110/115
Max
30
30
Product specification
SC26C94
1
UNIT
UNIT
SD00166
ns
ns
ns
ns
ns
SD00165