Rainbow Electronics BR24C21FV User Manual
Id rom for crt display
BR24C21 / BR24C21F / BR24C21FJ / BR24C21FV
Memory ICs
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) : 10
µA (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
Symbol
Limits
Unit
Supply voltage
−
0.3
~
+
6.5
V
Power disssipation
mW
Storage temperature range
−
65
~
+
125
°
C
Operating temperature range
°
C
Terminal voltage
−
V
−
40
~
+
85
V
CC
−
0.3
~V
CC
+
0.3
Pd
Tstg
Topr
∗
1
450(SOP8)
800(DIP8)
∗
2
∗
2
450(SOP-J8)
∗
3
350(SSOP-B8)
∗
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.
!
!
!
!
Recommended operating conditions (Ta=25
°C)
Parameter
Symbol
Limits
Unit
Supply voltage
V
Input voltage
V
IN
V
V
CC
0
~V
CC
2.5
~5.5