S-24CS16A0I-D8S1G Seiko Instruments, S-24CS16A0I-D8S1G Datasheet - Page 17

• Manufacturer Part Number: S-24CS16A0I-D8S1G
• Description: IC EEPROM 16KBIT 400KHZ 8DIP
• Manufacturer: Seiko Instruments

Specifications of S-24CS16A0I-D8S1G

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 16K (2K x 8)
• Speed: 400kHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DIP
• Organization: 2 K x 8
• Interface Type: 2-Wire
• Maximum Clock Frequency: 0.4 MHz
• Access Time: 1 us
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.8 V, 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev.5.2
LINE
SDA
7. 2 Random Read
Random read is used to read the data at an arbitrary memory address.
A dummy write is performed to load the memory address into the address counter.
When the E
start condition, it responds with an acknowledge. The E
with an acknowledge. The memory address is loaded to the address counter in the E
Reception of write data does not follow in a dummy write whereas reception of write data follows in a byte write and
in a page write.
Since the memory address is loaded into the memory address counter by dummy write, the master device can read
the data starting from the arbitrary memory address by transmitting a new start condition and performing the same
operation in the current address read.
That is, when the E
following a start condition signal, it responds with an acknowledge.
E
reading of E
2
R
S
T
A
T
_00
PROM in synchronous to the SCL clock. The master device outputs stop condition not an acknowledge, the
M
S
B
1 0 1 0
ADDRESS
DEVICE
2
2
PROM receives a 7-bit device address and a 1-bit read / write instruction code set to “0” following a
PROM is ended.
P2 P1 P0
DUMMY WRITE
2
PROM receives a 7-bit device address and a 1-bit read / write instruction code set to “1”,
S
B
L
W
W
R
R
T
E
0
/
I
C
A
K
W7 W6 W5 W4 W3 W2 W1 W0
WORD ADDRESS (n)
Figure 18 Random Read
Seiko Instruments Inc.
A
C
K
R
S
T
A
T
2
PROM then receives an 8-bit word address and responds
M
S
B
1 0 1 0
ADDRESS
DEVICE
2-WIRE CMOS SERIAL E
P2 P1 P0
Next, 8-bit data is transmitted from the
S
B
L
W
R
R
D
E
A
1
/
C
A
K
D7 D6 D5 D4 D3 D2 D1 D0
2
PROM by these operations.
NO ACK from
Master Device
DATA
S-24CS16A
ADR INC
2
PROM
O
S
T
P
17