BR9016AF-WE2 Rohm Semiconductor, BR9016AF-WE2 Datasheet - Page 9

• 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
(5) READY / BUSY display
1) This display outputs the internal status signal; the R / B pin outputs the HIGH or LOW status at all times. The display
2) When writing data to a memory cell, the READY / BUSY display is output from the rise of the 32nd clock pulse of the
1) DO will output R / B status after CS is held low during SK=L, until CS is held high.
Note : The document may be strategic technical data subject to COCOM regulations.
(R / B pin and DO pin: BR9080AF-W / ARFV-W / ARFVM-W, BR9016AF-W / ARFV-W / ARFVM-W)
can also be output from the DO pin. Following completion of the writing command, if CS falls while SK is LOW, either
HIGH or LOW is output. (The display can also be output without using the R / B pin, leaving it open.)
SK signal after tSV, from the R / B pin.
(The internal timer circuit is activated, and after the tE / W timing has been created, the timer circuit stops automatically.
Writing of data to the memory cell is done during the tE / W timing, during which time other commands cannot be
received.)
(Writing of data to the memory cell has been completed and the next command can be received.)
R / B display = LOW: writing in progress
R / B display = HIGH: command standby state
SK
DI
DO
R / B
CS
READY
BR9080AF-W / BR9080ARFV-W / BR9080ARFVM-W /
BR9016AF-W / BR9016ARFV-W / BR9016ARFVM-W
Write command
HIGH-Z
Clock
Fig.8 R / B Status Output timing chart
t
PD
BUSY
BUSY
READY
READY
t
OH
HIGH-Z
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