参数资料
型号: SY69753LHI
厂商: Micrel Inc
文件页数: 8/13页
文件大小: 0K
描述: IC CLOCK/DATA REC 155MBPS 32TQFP
标准包装: 250
类型: 时钟和数据恢复(CDR),多路复用器
PLL:
主要目的: 以太网,SONET/SDH,ATM OC-3
输入: PECL
输出: PECL
电路数: 1
比率 - 输入:输出: 1:3
差分 - 输入:输出: 是/是
频率 - 最大: 155Mbps
电源电压: 3.15 V ~ 3.45 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-TQFP 裸露焊盘
供应商设备封装: 32-EPAD-TQFP
包装: 托盘
MCP7940M
DS22292A-page 4
Preliminary
2012 Microchip Technology Inc.
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
VCC = +1.8V to 5.5V
TA = -40°C to +85°C
Param.
No.
Symbol
Characteristic
Min.
Max.
Units
Conditions
1FCLK
Clock frequency
100
400
kHz
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
2THIGH
Clock high time
4000
600
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
3TLOW
Clock low time
4700
1300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
4TR
SDA and SCL rise time
1000
300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
5TF
SDA and SCL fall time
1000
300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
6THD:STA Start condition hold time
4000
600
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
7TSU:STA
Start condition setup time
4700
600
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
8THD:DAT Data input hold time
0
ns
9TSU:DAT Data input setup time
250
100
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
10
TSU:STO Stop condition setup time
4000
600
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
11
TAA
Output valid from clock
3500
900
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
12
TBUF
Bus free time: Time the bus
must be free before a new
transmission can start
4700
1300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
13
TSP
Input filter spike suppression
(SDA and SCL pins)
—50
ns
Note 1: Not 100% tested.
2: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
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