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PDF BR93LC46FV-W Data sheet ( Hoja de datos )
| Número de pieza | BR93LC46FV-W | |
| Descripción | 6416bits serial EEPROM | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Memory ICs
BR93LC46-W / BR93LC46F-W / BR93LC46RF-W /
BR93LC46FJ-W / BR93LC46RFJ-W / BR93LC46FV-W
64×16bits serial EEPROM
BR93LC46-W / BR93LC46F-W / BR93LC46RF-W /
BR93LC46FJ-W / BR93LC46RFJ-W / BR93LC46FV-W
The BR93LC46-W series are CMOS serial input / output-type memory circuits (EEPROMs) that can be programmed
electrically. Each is configured of 64 words × 16 bits (1,024 bits), and each word can be accessed individually and data
read from it and written to it. Operation control is performed using five types of commands.
The commands, addresses, and data are input through the DI pin under the control of the CS and SK pins. In a write
operation, the internal status signal (READY or BUSY) can be output from the DO pin.
zApplications
VCRs, TVs, printers, car stereos, cordless telephones, short wave radios, programmable DIP switches, and
other battery-powered equipment requiring low voltage and low current
zFeatures
1) 64 words × 16 bits EEPROM
2) Operating voltage range
When reading : 2.0 to 5.5V
When writing : 2.7 to 5.5V
3) Low current consumption
Operating (at 5V) : 3mA (Max.)
Standby (at 5V) : 5µA (Max.)
4) Address can be incremented automatically during
read operations.
5) Auto erase and auto complete functions can be used
during write operations.
6) A write instruction inhibit function allows :
- write protection when power supply voltage is low.
- write disable state at power up.
- writing using command codes.
7) Compact packages
8) Display of READY / BUSY status
9) TTL-compatible input / output
10) Rewriting possible up to 100,000 times
11) Data can be stored for ten years without corruption.
zBlock diagram
CS
Command decode
Control
Clock generation
SK
Command
DI
register
DO Dummy bits
Power supply
voltage detector
Write
disable
High voltage
generator
Address
buffer
6bits
Address
decoder
6bits
Data
register
16bits
R/W
amplifier
16bits
1,024bits
EEPROM array
1 page  
Memory ICs
BR93LC46-W / BR93LC46F-W / BR93LC46RF-W /
BR93LC46FJ-W / BR93LC46RFJ-W / BR93LC46FV-W
(2) Operation timing characteristics
For 5V operation (unless otherwise noted, Ta = −40 to + 85°C, VCC = 5.0V ± 10%)
Parameter
Symbol Min. Typ. Max.
Unit
SK clock frequency
fSK − − 1 MHz
SK "HIGH" time
SK "LOW" time
CS "LOW" time
tSKH 450 − − ns
tSKL 450 − − ns
tCS 450 − − ns
CS setup time
tCSS 50 − − ns
DI setup time
tDIS 100 − − ns
CS hold time
tCSH 0 − − ns
DI hold time
tDIH 100 − − ns
Data "1" output delay time
tPD1 − − 500 ns
Data "0" output delay time
Time from CS to output confirmation
tPD0 − − 500 ns
tSV − − 500 ns
Time from CS to output High impedance
tDF
− − 100 ns
Write cycle time
tE / W − − 10 ms
For low voltage operation (unless otherwise noted, Ta = −40 to + 85°C, VCC = 3.0V ± 10%)
Parameter
Symbol Min. Typ. Max.
Unit
SK clock frequency
fSK − −
SK "HIGH" time
tSKH 1 −
SK "LOW" time
tSKL 1 −
CS "LOW" time
tCS 1 −
CS setup time
tCSS 200 −
DI setup time
tDIS 400 −
CS hold time
tCSH 0 −
DI hold time
tDIH 400 −
Data "1" output delay time
tPD1 − −
Data "0" output delay time
tPD0 − −
Time from CS to output confirmation
tSV − −
Time from CS to output High impedance
tDF
−−
Write cycle time
tE / W − −
250 kHz
− µs
− µs
− µs
− ns
− ns
− ns
− ns
2 µs
2 µs
2 µs
400 ns
25 ms
When reading at low voltage (unless otherwise noted, Ta = −40 to + 85°C, VCC = 2.0V)
Parameter
Symbol Min. Typ. Max.
Unit
SK clock frequency
SK "HIGH" time
fSK − − 200 kHz
tSKH 2 − − µs
SK "LOW" time
tSKL 2 − − µs
CS "LOW" time
CS setup time
DI setup time
CS hold time
tCS 2 − − µs
tCSS 400 − − ns
tDIS 800 − − ns
tCSH 0 − − ns
DI hold time
tDIH 800 − − ns
Data "1" output delay time
tPD1 − − 4 µs
Data "0" output delay time
tPD0 − − 4 µs
Time from CS to output High impedance
tDF
− − 800 ns
Not designed for radiative rays.
5 Page 
Memory ICs
BR93LC46-W / BR93LC46F-W / BR93LC46RF-W /
BR93LC46FJ-W / BR93LC46RFJ-W / BR93LC46FV-W
zExternal dimensions (Units : mm)
BR93LC46-W
9.3 ± 0.3
85
BR93LC46F-W / RF-W
5.0 ± 0.2
85
14
7.62
14
0.3 ± 0.1
2.54
0.5 ± 0.1
0°~15°
DIP8
1.27 0.4 ± 0.1
0.3Min.
SOP8
0.15
BR93LC46FJ-W / RFJ-W
4.9 ± 0.2
8765
BR93LC46FV-W
3.0 ± 0.2
85
1234
0.45Min.
1.27 0.42 ± 0.1
0.1
SOP-J8
14
(0.52)
0.22 ± 0.1
0.65
0.3Min.
SSOP-B8
0.1
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet BR93LC46FV-W.PDF ] | |
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