參數(shù)資料
型號: SC26C94
廠商: NXP Semiconductors N.V.
英文描述: Quad universal asynchronous receiver/transmitter QUART
中文描述: 四通用異步接收器/發(fā)送器夸脫
文件頁數(shù): 25/33頁
文件大?。?/td> 211K
代理商: SC26C94
Philips Semiconductors
Product specification
SC26C94
Quad universal asynchronous receiver/transmitter (QUART)
1995 May 1
25
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C; V
CC
= 5V
±
10%, unless otherwise specified. Limits shown as nn/nn refer to
Commercial/Industrial temperature range. Single numbers apply to both ranges.
NO.
FIGURE
CHARACTERISTIC
LIMITS
Typ
UNIT
Min
Max
110/115
90/122 + 3
X1 edges
1
30
30
1
3
D[7:0] Valid after IACKN Low
ns
2
3
DACKN Low after IACKN Low
10 + 2
X1 edges
1
0
0
110/115
ns
3
4
5
3
3
3
D[7:0] floating after IACKN High
DACKN High after IACKN High
IACKN High after IACKN Low
ns
ns
ns
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
in the ‘X1/CLK divide by 2 edges’ according to register 2E or 2F setting.
IRQN
IACKN
D[7:0]
DACKN
1
5
2
3
4
SD00165
NOTE: Rise time of IRQN is dependent on external circuit.
Figure 3. Interrupt Knowledge (IACKN) Timing
OSC/N
EVAL/HOLD
IACKN
CIR
VALUE FOR THIS INTERRUPT
SD00166
Figure 4. Interrupt Bid Arbitration Timing
相關PDF資料
PDF描述
SC26C94A1A Quad universal asynchronous receiver/transmitter QUART
SC26C94A1N Quad universal asynchronous receiver/transmitter QUART
SC26C94C1A Quad universal asynchronous receiver/transmitter QUART
SC26C94C1N Quad universal asynchronous receiver/transmitter QUART
SC26L198 Octal UART with TTL compatibility at 3.3V and 5V supply voltages
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