93C46B/SN Microchip Technology, 93C46B/SN Datasheet - Page 8

• Manufacturer Part Number: 93C46B/SN
• Description: IC EEPROM 1KBIT 2MHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 93C46B/SN

• Memory Size: 1K (64 x 16)
• 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: 4.5 V ~ 5.5 V
• Organization: 64 K x 16
• Interface Type: Microwire
• Maximum Clock Frequency: 2 MHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 1.5 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Disable (EWDS) state. All Programming modes must be
preceded
instruction. Once the EWEN instruction is executed,
programming remains enabled until an EWDS instruction is
93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
2.6
The 93XX46A/B/C powers up in the ERASE/WRITE
executed or Vcc is removed from the device.
FIGURE 2-5:
FIGURE 2-6:
2.7
The READ instruction outputs the serial data of the
addressed memory location on the DO pin. A dummy
zero bit precedes the 8-bit (If ORG pin is low or A-Version
devices) or 16-bit (If ORG pin is high or B-version
devices) output string. The output data bits will toggle on
FIGURE 2-7:
DS21749D-page 8
CLK
CLK
CS
DO
CS
DI
CLK
DI
CS
DI
ERASE/WRITE DISABLE And ENABLE (EWDS/EWEN)
READ
by an ERASE/WRITE
HIGH-Z
1
1
1
EWDS TIMING
EWEN TIMING
READ TIMING
1
0
0
0
0
0
An
Enable (EWEN)
0
1
•••
0
A0
1
0
Dx
X
X
•••
specified time delay (T
automatically cycle to the next register and output
To protect against accidental data disturbance, the EWDS
instruction can be used to disable all ERASE/WRITE
functions and should follow all programming operations.
Execution of a READ instruction is independent of both the
EWEN and EWDS instructions.
the rising edge of the CLK and are stable after the
when CS is held high. The memory data will
sequentially.
•••
•••
D0
Dx
X
X
•••
T
T
CSL
CSL
D0
PD
 2003 Microchip Technology Inc.
). Sequential read is possible
Dx
•••
D0