參數(shù)資料
型號(hào): MAS7838N
廠商: Electronic Theatre Controls, Inc.
英文描述: SYNCHRONOUS TO ASYNCHRONOUS CONVERTER SAC CMOS
中文描述: 轉(zhuǎn)爐同步的異步國(guó)資委的CMOS
文件頁(yè)數(shù): 7/9頁(yè)
文件大?。?/td> 110K
代理商: MAS7838N
DA7838.002
20 September, 2000
7 (9)
1132
TTL/V28
78189A
TTL/V28
75189A
RS232C
TXD
RXD
Ext. Signal Rate
Char. Length
Char. Length
ASY/SYN Select
mode
selection
jumpers
TSL
XHST
+5v
-12v
+12v
*) Optional timing from the
synchronous modem.
In this case CR 1 can be
eliminated.
MAS7838 simplified application:
V.28 interface for synchronous modem
+5v
7
5
6
1
2
3
4
8
9
10
11
12
13
14
15
16
TDO TTL-Level
TXC TTL-Level
RDI TTL-Level
RXC TTL-Level
22pF
CR 1
9.8304MHz
22pF
Modem
Timing
Circuit
16 x TXC
*)
TXC
RXC
MAS7838
Synchronous
Modem
470pF
470pF
TDI
RDO
+5v
+5v
3 x
4.75k
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