Fairchild NM93C46TEM8 1024-bit serial cmos eeprom (microwireâ ¢ synchronous bus) Datasheet

NM93C46
1024-Bit Serial CMOS EEPROM
(MICROWIRE™ Synchronous Bus)
General Description
Features
NM93C46 is a 1024-bit CMOS non-volatile EEPROM organized
as 64 x 16-bit array. This device features MICROWIRE interface
which is a 4-wire serial bus with chipselect (CS), clock (SK), data
input (DI) and data output (DO) signals. This interface is compatible to many of standard Microcontrollers and Microprocessors.
There are 7 instructions implemented on the NM93C46 for various
Read, Write, Erase, and Write Enable/Disable operations. This
device is fabricated using Fairchild Semiconductor floating-gate
CMOS process for high reliability, high endurance and low power
consumption.
■ Wide VCC 2.7V - 5.5V
“LZ” and “L” versions of NM93C46 offer very low standby current
making them suitable for low power applications. This device is
offered in both SO and TSSOP packages for small space considerations.
■ Endurance: 1,000,000 data changes
■ Typical active current of 200µA
10µA standby current typical
1µA standby current typical (L)
0.1µA standby current typical (LZ)
■ No Erase instruction required before Write instruction
■ Self timed write cycle
■ Device status during programming cycles
■ 40 year data retention
■ Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP
Functional Diagram
VCC
CS
INSTRUCTION
DECODER
CONTROL LOGIC
AND CLOCK
GENERATORS
SK
DI
INSTRUCTION
REGISTER
HIGH VOLTAGE
GENERATOR
AND
PROGRAM
TIMER
ADDRESS
REGISTER
DECODER
EEPROM ARRAY
16
READ/WRITE AMPS
VSS
16
DATA IN/OUT REGISTER
16 BITS
DO
© 2000 Fairchild Semiconductor International
NM93C46 Rev. E
DATA OUT BUFFER
1
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
February 2000
Dual-In-Line Package (N)
8–Pin SO (M8) and 8–Pin TSSOP (MT8)
CS
1
8
SK
2
DI
3
Normal 7
Pinout
DO
4
VCC
NC
1
NC
VCC
2
6
NC
CS
3
5
GND
SK
4
Rotated
Pinout
8
NC
7
GND
6
DO
5
DI
Top View
Package Number
N08E, M08A and MTC08
Pin Names
CS
Chip Select
SK
Serial Data Clock
DI
Serial Data Input
DO
Serial Data Output
GND
Ground
NC
No Connect
VCC
Power Supply
NOTE: Pins designated as "NC" are typically unbonded pins. However some of them are bonded for special testing purposes. Hence if a signal is applied to these pins, care
should be taken that the voltage applied on these pins does not exceed the VCC applied to the device. This will ensure proper operation.
Ordering Information
NM
93
C
XX
T
LZ
E
XXX
Letter Description
Package
N
M8
MT8
8-pin DIP
8-pin SO
8-pin TSSOP
Temp. Range
None
V
E
0 to 70°C
-40 to +125°C
-40 to +85°C
Voltage Operating Range
Blank
L
LZ
4.5V to 5.5V
2.7V to 5.5V
2.7V to 5.5V and
<1µA Standby Current
Blank
T
Normal Pinout
Rotated Pinout
46
1024 bits
C
CS
CMOS
Data protect and sequential
read
93
MICROWIRE
Density
Interface
Fairchild Memory Prefix
2
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Connection Diagram
Operating Conditions
Ambient Storage Temperature
Ambient Operating Temperature
NM93C46
NM93C46E
NM93C46V
All Input or Output Voltages
with Respect to Ground
Lead Temperature
(Soldering, 10 sec.)
-65°C to +150°C
+6.5V to -0.3V
+300°C
ESD rating
0°C to +70°C
-40°C to +85°C
-40°C to +125°C
Power Supply (VCC)
4.5V to 5.5V
2000V
DC and AC Electrical Characteristics VCC = 4.5V to 5.5V unless otherwise specified
Symbol
Max
Units
ICCA
Operating Current
Parameter
CS = VIH, SK=1.0 MHz
Conditions
Min
1
mA
ICCS
Standby Current
CS = VIL
50
µA
IIL
IOL
Input Leakage
Output Leakage
VIN = 0V to VCC
(Note 2)
±-1
µA
VIL
VIH
Input Low Voltage
Input High Voltage
0.8
VCC +1
V
0.4
V
0.2
V
1
MHz
-0.1
2
VOL1
VOH1
Output Low Voltage
Output High Voltage
IOL = 2.1 mA
IOH = -400 µA
2.4
VOL2
VOH2
Output Low Voltage
Output High Voltage
IOL = 10 µA
IOH = -10 µA
VCC - 0.2
fSK
SK Clock Frequency
(Note 3)
tSKH
SK High Time
0°C to +70°C
-40°C to +125°C
tSKL
250
300
ns
SK Low Time
250
ns
tSKS
SK Setup Time
50
ns
tCS
Minimum CS Low Time
250
ns
tCSS
CS Setup Time
100
ns
tDH
DO Hold Time
70
ns
(Note 4)
tDIS
DI Setup Time
100
ns
tCSH
CS Hold Time
0
ns
tDIH
DI Hold Time
20
ns
tPD
Output Delay
500
ns
tSV
CS to Status Valid
500
ns
tDF
CS to DO in Hi-Z
100
ns
tWP
Write Cycle Time
10
ms
CS = VIL
3
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Absolute Maximum Ratings (Note 1)
Operating Conditions
Ambient Storage Temperature
Ambient Operating Temperature
NM93C46L/LZ
NM93C46LE/LZE
NM93C46LV/LZV
-65°C to +150°C
All Input or Output Voltages
with Respect to Ground
+6.5V to -0.3V
Lead Temperature
(Soldering, 10 sec.)
+300°C
ESD rating
0°C to +70°C
-40°C to +85°C
-40°C to +125°C
Power Supply (VCC)
2.7V to 5.5V
2000V
DC and AC Electrical Characteristics VCC = 2.7V to 5.5V unless otherwise specified
Symbol
Parameter
Conditions
ICCA
Operating Current
CS = VIH, SK=1.0 MHz
ICCS
Standby Current
L
LZ (2.7V to 4.5V)
CS = VIL
IIL
IOL
Input Leakage
Output Leakage
VIN = 0V to VCC
(Note 2)
VIL
VIH
Input Low Voltage
Input High Voltage
VOL
VOH
Output Low Voltage
Output High Voltage
IOL = 10µA
IOH = -10µA
fSK
SK Clock Frequency
(Note 3)
tSKH
SK High Time
Min
-0.1
0.8VCC
Max
Units
1
mA
10
1
µA
µA
±1
µA
0.15VCC
VCC +1
V
0.1VCC
V
250
KHz
0.9VCC
0
1
µs
1
µs
0.2
µs
1
µs
CS Setup Time
0.2
µs
tDH
DO Hold Time
70
ns
tDIS
DI Setup Time
0.4
µs
tCSH
CS Hold Time
0
ns
tDIH
DI Hold Time
0.4
µs
tPD
Output Delay
2
µs
tSV
CS to Status Valid
1
µs
tDF
CS to DO in Hi-Z
0.4
µs
tWP
Write Cycle Time
15
ms
tSKL
SK Low Time
tSKS
SK Setup Time
tCS
Minimum CS Low Time
tCSS
(Note 4)
CS = VIL
Capacitance TA = 25°C, f = 1 MHz (Note 5)
Symbol
Test
Typ
Max
Units
COUT
Output Capacitance
5
pF
CIN
Input Capacitance
5
pF
Note 1: Stress above those listed under “Absolute Maximum Ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of the specification is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect device reliability.
Note 2:
Typical leakage values are in the 20nA range.
Note 3: The shortest allowable SK clock period = 1/fSK (as shown under the fSK parameter). Maximum
SK clock speed (minimum SK period) is determined by the interaction of several AC parameters stated
in the datasheet. Within this SK period, both tSKH and tSKL limits must be observed. Therefore, it is not
allowable to set 1/fSK = tSKHminimum + tSKLminimum for shorter SK cycle time operation.
Note 4: CS (Chip Select) must be brought low (to VIL) for an interval of tCS in order to reset all internal
device registers (device reset) prior to beginning another opcode cycle. (This is shown in the opcode
diagram on the following page.)
Note 5:
AC Test Conditions
This parameter is periodically sampled and not 100% tested.
VCC Range
VIL/VIH
Input Levels
VIL/VIH
Timing Level
VOL/VOH
Timing Level
IOL/IOH
2.7V ≤ VCC ≤ 5.5V
0.3V/1.8V
1.0V
0.8V/1.5V
±10µA
4.5V ≤ VCC ≤ 5.5V
0.4V/2.4V
1.0V/2.0V
0.4V/2.4V
2.1mA/-0.4mA
(Extended Voltage Levels)
(TTL Levels)
Output Load: 1 TTL Gate (CL = 100 pF)
4
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Absolute Maximum Ratings (Note 1)
Microwire Interface
Chip Select (CS)
A typical communication on the Microwire bus is made through the
CS, SK, DI and DO signals. To facilitate various operations on the
Memory array, a set of 7 instructions are implemented on NM93C46.
The format of each instruction is listed under Table 1.
This is an active high input pin to NM93C46 EEPROM (the device)
and is generated by a master that is controlling the device. A high
level on this pin selects the device and a low level deselects the
device. All serial communications with the device is enabled only
when this pin is held high. However this pin cannot be permanently
tied high, as a rising edge on this signal is required to reset the
internal state-machine to accept a new cycle and a falling edge to
initiate an internal programming after a write cycle. All activity on the
SK, DI and DO pins are ignored while CS is held low.
Instruction
Each of the 7 instructions is explained under individual instruction
descriptions.
Start bit
This is a 1-bit field and is the first bit that is clocked into the device
when a Microwire cycle starts. This bit has to be “1” for a valid cycle
to begin. Any number of preceding “0” can be clocked into the
device before clocking a “1”.
Serial Clock (SK)
This is an input pin to the device and is generated by the master that
is controlling the device. This is a clock signal that synchronizes the
communication between a master and the device. All input information (DI) to the device is latched on the rising edge of this clock input,
while output data (DO) from the device is driven from the rising edge
of this clock input. This pin is gated by CS signal.
Opcode
This is a 2-bit field and should immediately follow the start bit.
These two bits (along with 2 MSB of address field) select a
particular instruction to be executed.
Serial Input (DI)
Address Field
This is an input pin to the device and is generated by the master
that is controlling the device. The master transfers Input information (Start bit, Opcode bits, Array addresses and Data) serially via
this pin into the device. This Input information is latched on the
rising edge of the SCK. This pin is gated by CS signal.
This is a 6-bit field and should immediately follow the Opcode bits.
In NM93C46, all 6 bits are used for address decoding during
READ, WRITE and ERASE instructions. During all other instructions, the MSB 2 bits are used to decode instruction (along with
Opcode bits).
Serial Output (DO)
Data Field
This is an output pin from the device and is used to transfer Output
data via this pin to the controlling master. Output data is serially
shifted out on this pin from the rising edge of the SCK. This pin is
active only when the device is selected.
This is a 16-bit field and should immediately follow the Address
bits. Only the WRITE and WRALL instructions require this field.
D15 (MSB) is clocked first and D0 (LSB) is clocked last (both
during writes as well as reads).
Table 1. Instruction set
Instruction
Start Bit
Opcode Field
READ
1
10
A5
A4
A3
A2
A1
A0
WEN
1
00
1
1
X
X
X
X
Data Field
WRITE
1
01
A5
A4
A3
A2
A1
A0
D15-D0
WRALL
1
00
0
1
X
X
X
X
D15-D0
WDS
1
00
0
0
X
X
X
X
ERASE
1
11
A5
A4
A3
A2
A1
A0
ERAL
1
00
1
0
X
X
X
X
5
NM93C46 Rev. E
Address Field
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Pin Description
A typical Microwire cycle starts by first selecting the device
(bringing the CS signal high). Once the device is selected, a valid
Start bit (“1”) should be issued to properly recognize the cycle.
Following this, the 2-bit opcode of appropriate instruction should
be issued. After the opcode bits, the 6-bit address information
should be issued. For certain instructions, some of these 6 bits are
don’t care values (can be “0” or “1”), but they should still be issued.
Following the address information, depending on the instruction
(WRITE and WRALL), 16-Bit data is issued. Otherwise, depending on the instruction (READ), the device starts to drive the output
data on the DO line. Other instructions perform certain control
functions and do not deal with data bits. The Microwire cycle ends
when the CS signal is brought low. However during certain
instructions, falling edge of the CS signal initiates an internal cycle
(Programming), and the device remains busy till the completion of
the internal cycle. Each of the 7 instructions is explained in detail
in the following sections.
It is also recommended to follow this instruction (after the device
becomes READY) with a Write Disable (WDS) instruction to
safeguard data against corruption due to spurious noise, inadvertent writes etc.
4) Write All (WRALL)
Write all (WRALL) instruction is similar to the Write instruction
except that WRALL instruction will simultaneously program all
memory locations with the data pattern specified in the instruction.
This instruction is valid only when
1) Read (READ)
■ Device is write-enabled (Refer WEN instruction)
READ instruction allows data to be read from a selected location
in the memory array. Input information (Start bit, Opcode and
Address) for this instruction should be issued as listed under
Table1. Upon receiving a valid input information, decoding of the
opcode and the address is made, followed by data transfer from
the selected memory location into a 16-bit serial-out shift register.
This 16-bit data is then shifted out on the DO pin. D15 bit (MSB)
is shifted out first and D0 bit (LSB) is shifted out last. A dummy-bit
(logical 0) precedes this 16-bit data output string. Output data
changes are initiated on the rising edge of the SK clock. After
reading the 16-bit data, the CS signal can be brought low to end
the Read cycle. Refer Read cycle diagram.
Input information (Start bit, Opcode, Address and Data) for this
WRALL instruction should be issued as listed under Table1. After
inputting the last bit of data (D0 bit), CS signal must be brought low
before the next rising edge of the SK clock. This falling edge of the
CS initiates the self-timed programming cycle. It takes tWP time
(Refer appropriate DC and AC Electrical Characteristics table) for
the internal programming cycle to finish. During this time, the
device remains busy and is not ready for another instruction.
Status of the internal programming can be polled as described
under WRITE instruction description. While the device is busy, it
is recommended that no new instruction be issued. Refer Write All
cycle diagram.
2) Write Enable (WEN)
5) Write Disable (WDS)
When VCC is applied to the part, it “powers up” in the Write Disable
(WDS) state. Therefore, all programming operations must be
preceded by a Write Enable (WEN) instruction. Once a Write
Enable instruction is executed, programming remains enabled
until a Write Disable (WDS) instruction is executed or VCC is
completely removed from the part. Input information (Start bit,
Opcode and Address) for this WEN instruction should be issued
as listed under Table1. The device becomes write-enabled at the
end of this cycle when the CS signal is brought low. Execution of
a READ instruction is independent of WEN instruction. Refer
Write Enable cycle diagram.
Write Disable (WDS) instruction disables all programming operations and should follow all programming operations. Executing this
instruction after a valid write instruction would protect against
accidental data disturb due to spurious noise, glitches, inadvertent
writes etc. Input information (Start bit, Opcode and Address) for this
WDS instruction should be issued as listed under Table1. The
device becomes write-disabled at the end of this cycle when the CS
signal is brought low. Execution of a READ instruction is independent of WDS instruction. Refer Write Disable cycle diagram.
6) Erase (ERASE)
3) Write (WRITE)
The ERASE instruction will program all bits in the specified
location to a logical “1” state. Input information (Start bit, Opcode
and Address) for this WDS instruction should be issued as listed
under Table1. After inputting the last bit of data (A0 bit), CS signal
must be brought low before the next rising edge of the SK clock.
This falling edge of the CS initiates the self-timed programming
cycle. It takes tWP time (Refer appropriate DC and AC Electrical
Characteristics table) for the internal programming cycle to finish.
During this time, the device remains busy and is not ready for
another instruction. Status of the internal programming can be
polled as described under WRITE instruction description. While
the device is busy, it is recommended that no new instruction be
issued. Refer Erase cycle diagram.
WRITE instruction allows write operation to a specified location in
the memory with a specified data. This instruction is valid only when
■ Device is write-enabled (Refer WEN instruction)
Input information (Start bit, Opcode, Address and Data) for this
WRITE instruction should be issued as listed under Table1. After
inputting the last bit of data (D0 bit), CS signal must be brought low
before the next rising edge of the SK clock. This falling edge of the
CS initiates the self-timed programming cycle. It takes tWP time
(Refer appropriate DC and AC Electrical Characteristics table) for
the internal programming cycle to finish. During this time, the
device remains busy and is not ready for another instruction.
6
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
The status of the internal programming cycle can be polled at any
time by bringing the CS signal high again, after tCS interval. When
CS signal is high, the DO pin indicates the READY/BUSY status
of the chip. DO = logical 0 indicates that the programming is still
in progress. DO = logical 1 indicates that the programming is
finished and the device is ready for another instruction. It is not
required to provide the SK clock during this status polling. While
the device is busy, it is recommended that no new instruction be
issued. Refer Write cycle diagram.
Functional Description
When programming is in progress, the Data-Out pin will display
the programming status as either BUSY (low) or READY (high)
when CS is brought high (DO output will be tri-stated when CS is
low). To restate, during programming, the CS pin may be brought
high and low any number of times to view the programming status
without affecting the programming operation. Once programming
is completed (Output in READY state), the output is ‘cleared’
(returned to normal tri-state condition) by clocking in a Start Bit.
After the Start Bit is clocked in, the output will return to a tri-stated
condition. When clocked in, this Start Bit can be the first bit in a
command string, or CS can be brought low again to reset all
internal circuits. Refer Clearing Ready Status diagram.
The Erase all instruction will program all locations to a logical “1”
state. Input information (Start bit, Opcode and Address) for this
WDS instruction should be issued as listed under Table1. After
inputting the last bit of data (A0 bit), CS signal must be brought low
before the next rising edge of the SK clock. This falling edge of the
CS initiates the self-timed programming cycle. It takes tWP time
(Refer appropriate DC and AC Electrical Characteristics table) for
the internal programming cycle to finish. During this time, the
device remains busy and is not ready for another instruction.
Status of the internal programming can be polled as described
under WRITE instruction description. While the device is busy, it
is recommended that no new instruction be issued. Refer Erase
All cycle diagram.
Related Document
Application Note: AN758 - Using Fairchild’s MICROWIRE™ EEPROM.
Note: The Fairchild CMOS EEPROMs do not require an “ERASE” or “ERASE ALL”
instruction prior to the “WRITE” or “WRITE ALL” instruction, respectively. The
“ERASE” and “ERASE ALL” instructions are included to maintain compatibility with
earlier technology EEPROMs.Clearing of Ready/Busy status
7
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
7) Erase All (ERAL)
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Timing Diagrams
;
;;
;;; ;; ;;
; ; ;; ;;
; ;;;;; ;
;; ;;;;;;;;;
;;;;;;
; ;;;;;;;;
;
;;;;;;
; ;;;;;;;;
;;;;;;;;
; ;;;;;;;
;;;;;;;;;
; ;
SYNCHRONOUS DATA TIMING
CS
SK
tCSS
tSKS
tSKH
tDIS
DI
tSKL
tCSH
tDIH
Valid
Input
;
;
;
; ;
;
; ;
;
; ;
;
; ;;;;;;;;;;;;;;;;;;;
; ;
;
;;;;;;;;;;;;;;;;;;;;;
;;;;;;;; ;;;;;;;; ;
;;;;;; ;;;;;;;; ;
;
Valid
Input
tPD
Valid
Output
DO (Data Read)
tSV
DO (Status Read)
tDF
tPD
tDH
Valid
Output
tDF
Valid Status
NORMAL READ CYCLE (READ)
tCS
CS
SK
DI
1
1
Star t
Bit
0
A5
A4
Opcode
Bits(2)
A1
;;;;;;;;;;;;;;
;;;;;;;;;;;;;;
;;;
;;;
A0
Address
Bits(6)
High - Z
DO
0
D15
D1
D0
Dummy
Bit
93C46:
Address bits patter n -> User defined
WRITE ENABLE CYCLE (WEN)
tCS
CS
SK
DI
1
Star t
Bit
0
0
Opcode
Bits(2)
A5
A4
A1
A0
Address
Bits(6)
High - Z
DO
93C46:
A d d r e s s b i t s p a t t e r n - > 1 - 1 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 )
8
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Timing Diagrams (Continued)
WRITE DISABLE CYCLE (WDS)
tCS
CS
SK
DI
1
0
Star t
Bit
0
A5
A4
Opcode
Bits(2)
A1
A0
Address
Bits(6)
High - Z
DO
93C46:
A d d r e s s b i t s p a t t e r n - > 0 - 0 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 )
WRITE CYCLE (WRITE)
tCS
CS
SK
DI
1
0
Star t
Bit
1
A5
A4
Opcode
Bits(2)
A1
A0
D15 D14
Address
Bits(6)
D1
D0
tWP
Data
Bits(16)
High - Z
DO
Ready
Busy
93C46:
Address bits patter n -> User defined
Data bits patter n
-> User defined
WRITE ALL CYCLE (WRALL)
tCS
CS
SK
DI
1
Star t
Bit
0
0
Opcode
Bits(2)
A5
A4
A1
A0
D15 D14
Address
Bits(6)
Data
Bits(16)
D1
D0
tWP
High - Z
DO
Ready
Busy
93C46:
A d d r e s s b i t s p a t t e r n - > 0 - 1 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 )
Data bits pattern
-> User defined
9
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Timing Diagrams (Continued)
ERASE CYCLE (ERASE)
tCS
CS
SK
1
DI
Star t
Bit
1
1
Opcode
Bits(2)
DO
A5
A4
A1
A0
tWP
Address
Bits(6)
High - Z
Ready
Busy
93C46:
Address bits pattern -> User defined
ERASE ALL CYCLE (ERAL)
tCS
CS
SK
1
DI
Star t
Bit
1
1
Opcode
Bits(2)
DO
A5
High - Z
A4
A1
A0
tWP
Address
Bits(6)
Ready
Busy
93C46:
Address bits patter n -> 1-0-x-x-x-x ; (x -> Don't Care, can be 0 or 1)
CLEARING READY STATUS
CS
SK
DI
Star t
Bit
DO
High - Z
Ready
High - Z
Busy
Note: This Star t bit can also be par t of a next instr uction. Hence the cycle
can be continued (instead of getting ter minated, as shown) as if a new
instr uction is being issued.
10
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Physical Dimensions inches (millimeters) unless otherwise noted
0.189 - 0.197
(4.800 - 5.004)
8 7 6 5
0.228 - 0.244
(5.791 - 6.198)
1 2 3 4
Lead #1
IDENT
0.010 - 0.020
x 45°
(0.254 - 0.508)
0.0075 - 0.0098
(0.190 - 0.249)
Typ. All Leads
0.150 - 0.157
(3.810 - 3.988)
8° Max, Typ.
All leads
0.04
(0.102)
All lead tips
0.053 - 0.069
(1.346 - 1.753)
0.004 - 0.010
(0.102 - 0.254)
Seating
Plane
0.014
(0.356)
0.016 - 0.050
(0.406 - 1.270)
Typ. All Leads
0.050
(1.270)
Typ
0.014 - 0.020 Typ.
(0.356 - 0.508)
Molded Package, Small Outline, 0.15 Wide, 8-Lead (M8)
Package Number M08A
11
NM93C46 Rev. E
www.fairchildsemi.com
0.114 - 0.122
(2.90 - 3.10)
8
5
(4.16) Typ (7.72) Typ
0.169 - 0.177
(4.30 - 4.50)
0.246 - 0.256
(6.25 - 6.5)
(1.78) Typ
(0.42) Typ
0.123 - 0.128
(3.13 - 3.30)
(0.65) Typ
1
Land pattern recommendation
4
Pin #1 IDENT
0.0433
Max
(1.1)
0.0256 (0.65)
Typ.
0.0035 - 0.0079
See detail A
0.002 - 0.006
(0.05 - 0.15)
0.0075 - 0.0098
(0.19 - 0.30)
Gage
plane
0°-8°
DETAIL A
Typ. Scale: 40X
0.020 - 0.028
(0.50 - 0.70)
Seating
plane
0.0075 - 0.0098
(0.19 - 0.25)
Notes: Unless otherwise specified
1. Reference JEDEC registration MO153. Variation AA. Dated 7/93
8-Pin Molded TSSOP, JEDEC (MT8)
Package Number MTC08
12
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Physical Dimensions inches (millimeters) unless otherwise noted
0.373 - 0.400
(9.474 - 10.16)
0.090
(2.286)
8
0.092
DIA
(2.337)
7
6
0.250 - 0.005
+
Pin #1 IDENT
8
0.032 ± 0.005
(6.35 ± 0.127)
Pin #1
IDENT
1
Option 1
1
0.280 MIN
(7.112)
0.300 - 0.320
(7.62 - 8.128)
7
(0.813 ± 0.127)
RAD
5
2
3
0.040 Typ.
(1.016)
0.030
MAX
(0.762)
20° ± 1°
4
Option 2
0.145 - 0.200
0.039
(0.991)
(3.683 - 5.080)
0.130 ± 0.005
(3.302 ± 0.127)
95° ± 5°
0.009 - 0.015
(0.229 - 0.381)
+0.040
0.325 -0.015
+1.016
8.255 -0.381
0.125
(3.175)
DIA
NOM
0.125 - 0.140
(3.175 - 3.556)
0.065
(1.651)
90° ± 4°
Typ
0.018 ± 0.003
(0.457 ± 0.076)
0.100 ± 0.010
(2.540 ± 0.254)
0.045 ± 0.015
(1.143 ± 0.381)
0.020
(0.508)
Min
0.060
(1.524)
0.050
(1.270)
Molded Dual-In-Line Package (N)
Package Number N08E
Life Support Policy
Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written
approval of the President of Fairchild Semiconductor Corporation. As used herein:
1. Life support devices or systems are devices or systems which,
(a) are intended for surgical implant into the body, or (b) support
or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a significant
injury to the user.
Fairchild Semiconductor
Americas
Customer Response Center
Tel. 1-888-522-5372
2. A critical component is any component of a life support device
or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,
or to affect its safety or effectiveness.
Fairchild Semiconductor
Europe
Fax:
+44 (0) 1793-856858
Deutsch
Tel:
+49 (0) 8141-6102-0
English
Tel:
+44 (0) 1793-856856
Français
Tel:
+33 (0) 1-6930-3696
Italiano
Tel:
+39 (0) 2-249111-1
Fairchild Semiconductor
Hong Kong
8/F, Room 808, Empire Centre
68 Mody Road, Tsimshatsui East
Kowloon. Hong Kong
Tel; +852-2722-8338
Fax: +852-2722-8383
Fairchild Semiconductor
Japan Ltd.
4F, Natsume Bldg.
2-18-6, Yushima, Bunkyo-ku
Tokyo, 113-0034 Japan
Tel: 81-3-3818-8840
Fax: 81-3-3818-8841
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.
13
NM93C46 Rev. E
www.fairchildsemi.com
NM93C46 1024-Bit Serial CMOS EEPROM
(MICROWIRETM Synchronous Bus)
Physical Dimensions inches (millimeters) unless otherwise noted
Similar pages