93LC46A/SN Microchip Technology, 93LC46A/SN Datasheet - Page 10

• Manufacturer Part Number: 93LC46A/SN
• Description: IC EEPROM 1KBIT 2MHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 93LC46A/SN

• Memory Size: 1K (128 x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature: 0°C ~ 70°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 2MHz
• Interface: Microwire, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Organization: 128 K x 8
• Interface Type: Microwire
• Maximum Clock Frequency: 2 MHz
• Supply Voltage (max): 6 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 1.5 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 2.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
2.8
The WRITE instruction is followed by 8 bits (if ORG is
low or A-version devices) or 16 bits (if ORG pin is high
or B-version devices) of data, which are written into the
specified address. For 93AA46A/B/C and 93LC46A/B/C
devices, after the last data bit is clocked into DI, the
falling edge of CS initiates the self-timed auto-erase and
programming cycle. For 93C46A/B/C devices, the self-
timed auto-erase and programming cycle is initiated by
the rising edge of CLK on the last data bit.
FIGURE 2-8:
FIGURE 2-9:
DS21749H-page 10
CLK
CLK
CS
DO
CS
DO
DI
DI
Write
1
1
High-Z
High-Z
WRITE TIMING FOR 93AA AND 93LC DEVICES
WRITE TIMING FOR 93C DEVICES
0
0
1
1
A
A
N
N
•••
•••
A0
A0
Dx
Dx
•••
•••
The DO pin indicates the Ready/
device if CS is brought high after a minimum of 250 ns
low (T
is still in progress. DO at logical ‘1’ indicates that the
register at the specified address has been written with
the data specified and the device is ready for another
instruction.
D0
D0
Note:
CSL
T
T
CSL
CSL
). DO at logical ‘0’ indicates that programming
T
After the Write cycle is complete, issuing a
Start bit and then taking CS low will clear
the Ready/
WC
T
WC
Busy
Busy
T
T
SV
SV
Busy
 2010 Microchip Technology Inc.
Ready
Ready
status from DO.
Busy
High-Z
High-Z
status of the
T
T
CZ
CZ