BR93L66RF-WE2 Rohm Semiconductor, BR93L66RF-WE2 Datasheet - Page 27

• Manufacturer Part Number: BR93L66RF-WE2
• Description: IC EEPROM 4KBIT 2MHZ 8SOP
• Manufacturer: Rohm Semiconductor

Specifications of BR93L66RF-WE2

• Memory Size: 4K (256 x 16)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 2MHz
• Interface: Microwire, 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOP
• Clock Frequency: 2MHz
• Supply Voltage Range: 1.8V To 5.5V
• Memory Case Style: SOP
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (18-Jun-2010)
• Package /: RoHS Compliant
• Memory Configuration: 256 X 16
• Interface Type: Serial, Microwire
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

●Block diagram
●Pin assignment and function
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DO
CS
SK
DI
Pin name
TEST1
TEST2
BR93H56RF-WC:SOP8
BR93H56RFJ-WC:SOP-J8
TEST
VCC
CS
GND
Vcc
DO
CS
NC
SK
DI
Command decode
Control
Clock generation
Command
register
Dummy bit
NC
SK
TEST
Output
Input
Input
Input
DI
I / O
-
-
-
-
-
-
Fig.28 Pin assignment diagram
GND
DO
Power source
All input / output reference voltage, 0V
Chip select input
Serial clock input
Start bit, ope code, address, and serial data input
Serial data output, READY / BUSY internal condition display output
Non connected terminal, Vcc, GND or OPEN
TEST terminal, GND or OPEN
TEST terminal, Vcc, GND or OPEN
TEST terminal, GND or OPEN
Fig. 27 Block diagram
Address
buffer
Data
register
27/40
Write
prohibition
Power source voltage detection
10bit
7bit
8bit
9bit
16bit
VCC TEST2 TEST1
BR93H66RF-WC:SOP8
BR93H66RFJ-WC:SOP-J8
BR93H76RF-WC:SOP8
BR93H76RFJ-WC:SOP-J8
BR93H86RF-WC:SOP8
BR93H86RFJ-WC:SOP-J8
CS
Function
Address
decoder
R/W
amplifier
SK
High voltage occurrence
DI
10bit
7bit
8bit
9bit
16bit
GND
DO
16,384 bit
EEPROM
2,048 bit
4,096 bit
8,192 bit
Technical Note
2011.02 - Rev.F