DS1852

2 of 25

PIN DESCRIPTIONS

Name Ball Locations

Description

D2, D4, E3

Power-Supply Terminal. The DS1852 will support supply voltages

ranging from +2.7V to +5.5V.

GND

B3, C2, C4, D3

Ground Terminal

SDA

B5

2-Wire Serial Data. The serial data pin is for serial data transfer to and

from the DS1852. The pin is open drain and may be wire-OR’ed with

other open-drain or open-collector interfaces.

SCL

A5

2-Wire Serial Clock. The serial clock input is used to clock data into

the DS1852 on rising edges and clock data out on falling edges.

A3

Analog Input Pin (Bias Value). Input to A/D.

D1

Analog Input Pin (Power Level). Input to A/D.

A2

Analog Input Pin (Received Power). Input to A/D.

ASEL B2

Address Select Pin. If set to logic 0, the device address is A0h. If set to

logic 1, the value in Table 3, byte D0h determines the chip address

(factory default is A2h). For SFF-8472 compliance, this pin should be

connected high.

C5

Digital Input Pin (TX Disable). Digital input for mirroring in memory

map.

B4

Digital Input Pin (Rate Select). Digital input for mirroring in memory

map.

E5

Digital Input Pin (TX Fault). Digital input for mirroring in memory

map.

A1

Digital Input Pin (LOS). Digital input for mirroring in memory map.

NC

A4, B1, C1, D5,

No Connect

E1, E2, E4, C3