DS1848
2 of 17
PIN DESCRIPTIONS
Name TSSOP BGA Description
V
CC
14 A3 Power Supply Terminal. The DS1848 will support supply
voltages ranging from +3.0V to +5.5V.
GND 7 D1 Ground Terminal.
SDA 1 B2 2-Wire Serial Data Interface. The serial data pin is for serial data
transfer to and from the DS1848. The pin is open drain and may
be wire-ORed with other open drain or open collector interfaces.
SCL 2 A2 2-Wire Serial Clock Input. The serial clock input is used to
clock data into the DS1848 on rising edges and clock data out on
falling edges.
WP 6 C1 Write Protect Input. If open or set to logic 1, all memory, control
registers, and Look-up tables are write protected. If set to a logic 0, the
device is not write protected and can be written to. The WP pin is pulled
high internally.
A0 3 A1 Address Input. Pins A0, A1, and A2 are used to specify the
address of each DS1848 when used in a multi-dropped
configuration.
A1 4 B1 Address Input.
A2 5 C2 Address Input.
H0 13 A4 High terminal of Resistor 0. For both resistors, it is
not required that the high terminal be connected to a potential
greater than the low terminal. Voltage applied to the high terminal
of each resistor cannot exceed V
CC
, or go below ground.
H1 11 B3 High terminal of Resistor 1.
L0 8 D3 Low terminal of Resistor 0. For both resistors, it is
not required that the low terminal be connected to a potential less
than the high terminal. Voltage applied to the low terminal of each
resistor cannot exceed V
CC
, or go below ground.
L1 10 C4 Low terminal of Resistor 1.
NC 9 D4 No Connect.
NC 12 B4 No Connect.
NC C3 No Connect.
NC D2 No Connect.
