BR24C21 Datasheet, PDF (1/12 Pages) Rohm – ID ROM for CRT display

Memory ICs
BR24C21 / BR24C21F / BR24C21FJ / BR24C21FV
ID ROM for CRT display
BR24C21 / BR24C21F / BR24C21FJ / BR24C21FV
The BR24C21 series are 1kbits serial EEPROMs and support DDC1^TM and DDC2^TM interfaces for PLUG&PLAY
displays.
!Features
1) 128 x 8 bits serial EEPROM
2) Operating voltage range (2.5V∼5.5V)
3) Completely implements DDC1^TM / DDC2^TM interface
for monitor identification
Transmit-Only Mode
Recovery Mode
Bi-directional Mode
4) Page write function : 8 bytes
5) Low current consumption
Active (at 5V) : 1.5mA (Typ.)
Standby (at 5V) : 10µA (Typ.)
6) DATA security
Write enable feature
Inhibit to WRITE at low Vcc
7) Compact packages
8) High reliability fine pattern CMOS technology
9) Rewriting possible up to 100,000 times
10) Data can be stored for ten years without corruption
11) Noise filters at SCL, SDA and VCLK pins
!Absolute maximum ratings (Ta=25°C)
Parameter
Supply voltage
Symbol
VCC
Power disssipation
Pd
Storage temperature range
Tstg
Operating temperature range Topr
Terminal voltage
−
∗1 Degradation is done at 8.0mW/°C for operation above 25°C.
∗2 Degradation is done at 4.5mW/°C for operation above 25°C.
∗3 Degradation is done at 3.5mW/°C for operation above 25°C.
Limits
−0.3~+6.5
800(DIP8) ∗1
450(SOP8) ∗2
450(SOP-J8) ∗2
350(SSOP-B8) ∗3
−65~+125
−40~+85
−0.3~VCC+0.3
Unit
V
mW
°C
°C
V
!Recommended operating conditions (Ta=25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
VCC
2.5~5.5
V
Input voltage
VIN
0~VCC
V