ISL94201IRZ Intersil, ISL94201IRZ Datasheet - Page 15

• Manufacturer Part Number: ISL94201IRZ
• Description: IC MULTI LI-ION AFE 24-QFN
• Manufacturer: Intersil

Specifications of ISL94201IRZ

• Function: Over/Under Voltage Protection
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 5 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Read Operations
Read operations are initiated in the same manner as write
operations with the host sending the address where the read
is to start (but no data). Then, the host sends an ACK, a
repeated start, and the slave byte with the LSB = 1. After the
device acknowledges the slave byte, the device sends out
one bit of data for each master clock. After the slave sends
eight bits to the master, the master sends a NACK (Not
acknowledge) to the device, to indicate the data transfer is
complete, then the master sends a stop bit. See Figure 10.
SDA BUS
A
R
S
T
T
0 1 0 1
SLAVE
BYTE
0
0 0
0
A
C
K
15
RANDOM READ
REGISTER
ADDRESS
A
C
K
S
A
R
T
T
0 1 0 1
FIGURE 10. READ SEQUENCE
SLAVE
BYTE
0
ISL94201: SLAVE BYTE = 010100xH
0 0
ISL94201
1
A
C
K
DATA
After sending the eighth data bit to the master, the device
automatically increments its internal address pointer. So the
master, instead of sending a NACK and the stop bit, can
send additional clocks to read the contents of the next
register - without sending another slave and address byte.
If the last address read or written is known, the master can
initiate a current address read. In this case, only the slave
byte is sent before data is returned. See Figure 10.
.
N
A
C
K
S
O
P
T
S
T
A
R
T
CURRENT ADDRESS READ
0 1 0 1
SLAVE
BYTE
0
0 0
1
A
C
K
DATA
July 3, 2008
FN6719.0
N
A
C
K
O
S
T
P