LMH2190 Datasheet, PDF (7/24 Pages) National Semiconductor (TI) – Quad Channel 27 MHz Clock Tree Driver with I2C Interface

Connection Diagrams
16-Bump micro SMD
16–Bump micro SMD Marking
300838a8
Top View
XY = Date Code
TT = Die Tracebility
AA = LMH2190TM-38
Top View
30083803
Pin Descriptions
Pin
Pin Name
Port /
Direction
C1
SCLK_IN
Host
C2
SCLK_REQ
Host
A3
CLK1
Peripheral
B3
CLK_REQ1 Peripheral
A4
CLK2
Peripheral
B4
CLK_REQ2 Peripheral
D4
CLK3
Peripheral
C4
CLK_REQ3 Peripheral
D3
CLK4
Peripheral
C3
CLK_REQ4 Peripheral
A2
ENABLE
Host
D2
SCL
Host
D1
SDA
A1
V_BAT
B1
V_OUT
B2
V_SS
Host /
Bidirectional
Battery /
Input
LDO / Output
Ground
I = Input, O = Output, I/O = Input / Output
Type
I
O
O
I
O
I
O
I
O
I
I
I
I/O
Power
Power
Ground
Description
Source Clock Input
Source Clock Request
Clock Output 1
Clock Request Input 1
Clock Output 2
Clock Request Input 2
Clock Output 3
Clock Request Input 3
Clock Output 4
Clock Request Input 4
Enable Device, Active High
I²C Clock Input, 100 kΩ Pull-up to ENABLE
I²C Data I/O, 100 kΩ Pull-up to ENABLE
Power Supply
Power Supply to Clock Source and Clock Outputs
Ground Pin
7
www.national.com