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M93C76 데이터시트 PDF




STMicroelectronics에서 제조한 전자 부품 M93C76은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 M93C76 자료 제공

부품번호 M93C76 기능
기능 MICROWIRE Serial Access EEPROM
제조업체 STMicroelectronics
로고 STMicroelectronics 로고


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M93C76 데이터시트, 핀배열, 회로
M93C86, M93C76, M93C66
M93C56, M93C46
16Kbit, 8Kbit, 4Kbit, 2Kbit and 1Kbit (8-bit or 16-bit wide)
MICROWIRE® Serial Access EEPROM
FEATURES SUMMARY
Industry Standard MICROWIRE Bus
Single Supply Voltage:
– 4.5 to 5.5V for M93Cx6
– 2.5 to 5.5V for M93Cx6-W
– 1.8 to 5.5V for M93Cx6-R
Dual Organization: by Word (x16) or Byte (x8)
Programming Instructions that work on: Byte,
Word or Entire Memory
Self-timed Programming Cycle with Auto-
Erase: 5ms
Ready/Busy Signal During Programming
2MHz Clock Rate
Sequential Read Operation
Enhanced ESD/Latch-Up Behavior
More than 1 Million Erase/Write Cycles
More than 40 Year Data Retention
Packages
– ECOPACK® (RoHS compliant)
Table 1. Product List
Reference
Part
Number
M93C86
M93C86 M93C86-W
M93C86-R
M93C76
M93C76 M93C76-W
M93C76-R
M93C66
M93C66 M93C66-W
M93C66-R
Reference
Part
Number
M93C56
M93C56 M93C56-W
M93C56-R
M93C46
M93C46 M93C46-W
M93C46-R
Figure 1. Packages
8
1
PDIP8 (BN)
8
1
SO8 (MN)
150 mil width
TSSOP8 (DW)
169 mil width
TSSOP8 (DS)
3x3mm² body size (MSOP)
UFDFPN8 (MB)
2x3mm² (MLP)
October 2005
1/31




M93C76 pdf, 반도체, 판매, 대치품
M93C86, M93C76, M93C66, M93C56, M93C46
SUMMARY DESCRIPTION
These electrically erasable programmable memo-
ry (EEPROM) devices are accessed through a Se-
rial Data Input (D) and Serial Data Output (Q)
using the MICROWIRE bus protocol.
In order to meet environmental requirements, ST
offers these devices in ECOPACK® packages.
ECOPACK® packages are Lead-free and RoHS
compliant.
ECOPACK is an ST trademark. ECOPACK speci-
fications are available at: www.st.com.
Figure 2. Logic Diagram
D
C
S
ORG
VCC
M93Cx6
VSS
Q
AI01928
Table 2. Signal Names
S Chip Select Input
D Serial Data Input
Q Serial Data Output
C Serial Clock
ORG
Organisation Select
VCC Supply Voltage
VSS Ground
The memory array organization may be divided
into either bytes (x8) or words (x16) which may be
selected by a signal applied on Organization Se-
lect (ORG). The bit, byte and word sizes of the
memories are as shown in Table 3.
Table 3. Memory Size versus Organization
Device
Number
of Bits
Number
of 8-bit
Bytes
Number
of 16-bit
Words
M93C86
16384
2048
1024
M93C76
8192
1024
512
M93C66
4096
512
256
M93C56
2048
256
128
M93C46
1024
128
64
The M93Cx6 is accessed by a set of instructions,
as summarized in Table 4., and in more detail in
Table 5. to Table 7.).
Table 4. Instruction Set for the M93Cx6
Instruction
Description
Data
READ
Read Data from Memory Byte or Word
WRITE
Write Data to Memory Byte or Word
EWEN
Erase/Write Enable
EWDS
Erase/Write Disable
ERASE
Erase Byte or Word
Byte or Word
ERAL
Erase All Memory
WRAL
Write All Memory
with same Data
A Read Data from Memory (READ) instruction
loads the address of the first byte or word to be
read in an internal address register. The data at
this address is then clocked out serially. The ad-
dress register is automatically incremented after
the data is output and, if Chip Select Input (S) is
held High, the M93Cx6 can output a sequential
stream of data bytes or words. In this way, the
memory can be read as a data stream from eight
to 16384 bits long (in the case of the M93C86), or
continuously (the address counter automatically
rolls over to 00h when the highest address is
reached).
Programming is internally self-timed (the external
clock signal on Serial Clock (C) may be stopped or
left running after the start of a Write cycle) and
does not require an Erase cycle prior to the Write
instruction. The Write instruction writes 8 or 16 bits
at a time into one of the byte or word locations of
the M93Cx6. After the start of the programming cy-
cle, a Busy/Ready signal is available on Serial
4/31

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M93C76 전자부품, 판매, 대치품
M93C86, M93C76, M93C66, M93C56, M93C46
INSTRUCTIONS
The instruction set of the M93Cx6 devices con-
tains seven instructions, as summarized in Table
5. to Table 7.. Each instruction consists of the fol-
lowing parts, as shown in Figure 4.:
Each instruction is preceded by a rising edge
on Chip Select Input (S) with Serial Clock (C)
being held Low.
A start bit, which is the first ‘1’ read on Serial
Data Input (D) during the rising edge of Serial
Clock (C).
Two op-code bits, read on Serial Data Input
(D) during the rising edge of Serial Clock (C).
(Some instructions also use the first two bits of
the address to define the op-code).
The address bits of the byte or word that is to
be accessed. For the M93C46, the address is
made up of 6 bits for the x16 organization or 7
bits for the x8 organization (see Table 5.). For
the M93C56 and M93C66, the address is
made up of 8 bits for the x16 organization or 9
bits for the x8 organization (see Table 6.). For
the M93C76 and M93C86, the address is
made up of 10 bits for the x16 organization or
11 bits for the x8 organization (see Table 7.).
The M93Cx6 devices are fabricated in CMOS
technology and are therefore able to run as slow
as 0 Hz (static input signals) or as fast as the max-
imum ratings specified in Table 20. to Table 23..
Table 5. Instruction Set for the M93C46
Instruc
tion
Description
Start
bit
Op-
Code
x8 Origination (ORG = 0)
x16 Origination (ORG = 1)
Address(1)
Data
Required
Clock Address(1)
Cycles
Data
Required
Clock
Cycles
READ
Read Data from
Memory
1 10
A6-A0 Q7-Q0
A5-A0 Q15-Q0
WRITE
Write Data to
Memory
1 01
A6-A0 D7-D0
18
A5-A0 D15-D0
25
EWEN Erase/Write Enable 1
00 11X XXXX
10 11 XXXX
9
EWDS Erase/Write Disable 1
00 00X XXXX
10 00 XXXX
9
ERASE Erase Byte or Word 1
11
A6-A0
10 A5-A0
9
ERAL Erase All Memory 1 00 10X XXXX
10 10 XXXX
9
WRAL
Write All Memory
with same Data
1 00 01X XXXX D7-D0 18
01 XXXX D15-D0
25
Note: 1. X = Don't Care bit.
7/31

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