参数资料
型号: DS2181AQN+
厂商: Maxim Integrated Products
文件页数: 28/32页
文件大小: 0K
描述: IC TXRX CEPT PRIMARY RATE 44PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 26
类型: 收发器
驱动器/接收器数: 1/1
规程: CEPT
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 管件
DS2181A
5 of 32
PORT PIN DESCRIPTION (40-PIN DIP ONLY) Table 3
PIN
SYMBOL
TYPE
DESCRIPTION
14
INT
O
Receive Alarm Interrupt. Flags host controller during alarm
conditions. Active low; open drain output.
15
SDI
I
Serial Data In. Data for on-chip control registers; sampled on rising
edge of SCLK.
16
SDO
O
Serial Data Out. Control and status data from on-chip registers.
Updated on falling edge of SCLK; tri-stated during port write or when
CS
is high.
17
CS
I
Chip Select. Must be low to write or read the serial port.
18
SCLK
I
Serial Data Clock. Used to write or read the serial port registers.
19
SPS
I
Serial Port Select. Tie to VDD to select the serial port. Tie to VSS to
select the hardware mode.
POWER AND TEST PIN DESCRIPTION (40-PIN DIP ONLY) Table 4
PIN
SYMBOL
TYPE
DESCRIPTION
20
VSS
-
Signal Ground. 0.0 volts.
32
TEST
I
Test Mode. Tie to VSS to select the old DS2181 sync algorithm and to
tri–state the synchronizer status pins on the DS2181AQ. Tie to VDD
to select the new DS2181A sync algorithm and activate the
synchronizer status pins on the DS2181AQ.
40
VDD
-
Positive Supply. 5.0 volts.
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