BR9016AF-WE2 Rohm Semiconductor, BR9016AF-WE2 Datasheet - Page 6

• Manufacturer Part Number: BR9016AF-WE2
• Description: IC EEPROM 16KBIT 2MHZ 8SOP
• Manufacturer: Rohm Semiconductor

Specifications of BR9016AF-WE2

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 16K (1K x 16)
• Speed: 2MHz
• Interface: 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Memory ICs
! ! ! ! Circuit operation
(1) Command mode
BR9080A
BR9016A
(2) Writing enabled / disabled
1) When CS is “HIGH” during power up, BR9080AF-W / ARFV-W / ARFVM-W, BR9016AF-W / ARFV-W / ARFVM-W
2) It is unnecessary to add the clock after 16th clock.
Read (READ)
Write (WRITE)
Write enable (WEN)
Write disable (WDS)
Read (READ)
Write (WRITE)
Write enable (WEN)
Write disable (WDS)
∗ : Means either V
Address and data are transferred from LSB.
∗ : Means either V
Address and data are transferred from LSB.
comes up in the write disabled (WDS) state. In order to be programmable, it must receive a write enable (WEN)
instruction.
The device remains programmable until a disable (WDS) instruction is entered, or until it is powered down.
SK
CS
DI
DO
R / B
WC
Instruction
Instruction
IH
IH
H
L
H
L
H
L
H
or V
or V
IL
IL
High or LOW
HIGH-Z
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W /
1
1
BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
0
1
Start Bit
Start Bit
1010
1010
1010
1010
1010
1010
1010
1010
0
4
0
Op Code
10 A0 A1
01 A0 A1
Op Code
0
100 A0
010 A0
0011
0000
0011
0000
Fig.3
8
ENABLE = 11
DISABLE = 00
A1 A2 A3 A4 A5 A6 A7 A8
A1 A2 A3 A4 A5 A6 A7 A8
∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
A2 A3 A4 A5 A6 A7 A8 A9
A2 A3 A4 A5 A6 A7 A8 A9
∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
Address
Address
12
D0 D1 − D14 D15
D0 D1 − D14 D15
16
Data
Data
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