Datasheet

I
2
C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
18 Maxim Integrated
DS1388
...
AXXXXXXXXA1101BBBS 1 XXXXXXXX A XXXXXXXX A XXXXXXXX A P
B - BLOCK SELECT
S - START
A - ACKNOWLEDGE (ACK)
P - STOP
A - NOT ACKNOWLEDGE (NACK)
R/W - READ/WRITE OR DIRECTION BIT ADDRESS
DATA TRANSFERRED
(X + 1 BYTES + ACKNOWLEDGE)
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK.
MASTER TO SLAVE SLAVE TO MASTER
<R/W> <DATA (n)> <DATA (n + 1)> <DATA (n + 2)> <DATA (n + X)>
<SLAVE
ADDRESS>
Figure 8. Data Read—Slave Transmitter Mode
B - BLOCK SELECT
S - START
Sr - REPEATED START
A - ACKNOWLEDGE (ACK)
P - STOP
A - NOT ACKNOWLEDGE (NACK)
R/W - READ/WRITE OR DIRECTION BIT ADDRESS
<R/W> <WORD ADDRESS (n)> <SLAVE ADDRESS (n)>
<SLAVE
ADDRESS> <R/W>
AXXXXXXXXA1101BBB 1101BBBSSr0 A1
DATA TRANSFERRED
(X + 1 BYTES + ACKNOWLEDGE)
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK.
MASTER TO SLAVE SLAVE TO MASTER
AXXXXXXXX XXXXXXXX A XXXXXXXX A XXXXXXXX A P
<DATA (n)> <DATA (n + 1)> <DATA (n + 2)> <DATA (n + X)>
...
Figure 9. Data Write/Read (Write Pointer, Then Read)—Slave Receive and Transmit
Chip Information
SUBSTRATE CONNECTED TO GROUND
PROCESS: CMOS
Package Information
For the latest package outline information and land patterns, go
to www.maximintegrated.com/packages
. Note that a “+”, “#”,
or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 SO S8+4
21-0041 90-0096