AT93C46D Automotive - Complete

AT93C46D
3-wire Automotive Temperature Serial EEPROMs
1K (128 x 8 or 64 x 16)
DATASHEET
Features

Medium-voltage and Standard-voltage Operation
̶

2.5 (VCC = 2.5V to 5.5V)
User-selectable Internal Organization
̶




1K: 128 x 8 or 64 x 16
3-wire Serial Interface
2MHz Clock Rate (5V)
Self-timed Write Cycle (10ms max)
High Reliability
̶
̶

Endurance: 1,000,000 Write Cycles
Data Retention: 100 Years
8-lead JEDEC SOIC and TSSOP Packages
Description
The AT93C46D provides 1,024 bits of serial electrically erasable programmable
read only memory (EEPROM) organized as 64 words of 16 bits each, when the
ORG pin is connected to VCC and 128 words of 8 bits each when it is tied to
ground. The device is optimized for use in many automotive applications where
low power and low voltage operations are essential. The AT93C46D is available
in space-saving 8-lead TSSOP and 8-lead JEDEC SOIC packages. The
AT93C46D is enabled through the Chip Select pin (CS), and accessed via a
3-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift
Clock (SK). Upon receiving a READ instruction at DI, the address is decoded and
the data is clocked out serially on the data output pin DO. The WRITE cycle is
completely self-timed and no separate erase cycle is required before write. The
Write cycle is only enabled when it is in the Erase/Write Enable state. When CS is
brought “high” following the initiation of a write cycle, the DO pin outputs the
Ready/Busy status.
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
1.
Pin Configurations and Pinouts
Table 1-1.
2.
Pin Configurations
Pin Name
Function
CS
Chip Select
DI
Serial Data Input
DO
Serial Data Output
GND
Ground
ORG
Internal Organization
SK
Serial Data Clock
VCC
Power Supply
8-lead SOIC
CS
1
8
VCC
SK
2
7
DC
DI
3
6
ORG
DO
4
5
GND
(Top View)
Note:
CS
SK
DI
DO
1
2
3
4
8
7
6
5
VCC
DC
ORG
GND
(Top View)
Drawings are not to scale.
Absolute Maximum Ratings*
Operating Temperature  55C to +125C
Storage Temperature 65C to +150C
Voltage on Any Pin
with Respect to Ground 1.0V to +7.0V
Maximum Operating Voltage . . . . . . . . . . . . . . . 6.25V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . .5.0mA
2
8-lead TSSOP
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
*Notice: Stresses beyond 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 beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability
3.
Block Diagram
Figure 3-1.
Block Diagram
VCC
GND
Memory Array
ORG
128 x 8
or
64 x 16
Address
Decoder
Data
Register
Output
Buffer
DI
CS
SK
Note:
Mode Decode
Logic
Clock
Generator
DO
When the ORG pin is connected to VCC, the x16 organization is selected. When it is connected to ground,
the x8 organization is selected.
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
3
4.
Memory Organization
4.1
Pin Capacitance
Table 4-1.
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25C, f = 1.0MHz, VCC = +5.0V (unless otherwise noted).
Symbol
Test Conditions
COUT
CIN
Note:
4.2
1.
Max
Units
Conditions
Output Capacitance (DO)
5
pF
VOUT = 0V
Input Capacitance (CS, SK, DI)
5
pF
VIN = 0V
This parameter is characterized and is not 100% tested.
DC Characteristics
Table 4-2.
DC Characteristics
Applicable over recommended operating range from: TA = -40° C to +125° C, VCC = +2.5V to +5.5V (unless otherwise
noted).
Symbol
Parameter
VCC1
Supply Voltage
VCC2
Supply Voltage
ICC
Supply Current
VCC = 5.0V
ISB1
Standby Current
ISB2
Min
Typ
Max
Unit
2.5
5.5
V
4.5
5.5
V
Read at 1.0MHz
0.5
2.0
mA
WRITE at 1.0MHz
0.5
2.0
mA
VCC = 2.5V
CS = 0V
6.0
10.0
μA
Standby Current
VCC = 5.0V
CS = 0V
10.0
15.0
μA
IIL
Input Leakage
VIN = 0V to VCC
0.1
1.0
μA
IOL
Output Leakage
VIN = 0V to VCC
0.1
1.0
μA
VIL1(1)
Input Low Voltage
VIH1(1)
Input High Voltage
VOL1
Output Low Voltage
VOH1
Output High Voltage
Note:
4
Test Condition
1.
2.5V VCC  5.5V
2.5V  VCC  5.5V
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
0.8
2.0
VCC + 1
V
0.4
V
IOL = 2.1mA
IOH = 0.4mA
VIL min and VIH max are reference only and are not tested.
AT93C46D Automotive [DATASHEET]
0.6
2.4
V
4.3
AC Characteristics
Table 4-3.
AC Characteristics
Applicable over recommended operating range from TA = 40°C to + 125°C, VCC = As Specified, CL = 1 TTL Gate and
100pF (unless otherwise noted).
Symbol
Parameter
fSK
SK Clock Frequency
tSKH
SK High Time
tSKL
SK Low Time
tCS
Minimum CS Low Time
tCSS
CS Setup Time
tDIS
DI Setup Time
tCSH
CS Hold Time
Relative to SK
tDIH
DI Hold Time
Relative to SK
tPD1
Output Delay to ‘1’
tPD0
Output Delay to ‘0’
tSV
CS to Status Valid
tDF
CS to DO in High-impedance
tWP
Write Cycle Time
Endurance(1)
5.0V, 25°C
Note:
1.
Test Condition
Min
Typ
Max
4.5V  VCC  5.5V
0
2
2.5V  VCC  5.5V
0
1
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
250
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
250
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
250
Relative to SK
Relative to SK
MHz
ns
ns
ns
4.5V  VCC  5.5V
50
2.5V  VCC  5.5V
50
4.5V  VCC  5.5V
100
2.5V  VCC  5.5V
100
ns
ns
0
4.5V  VCC  5.5V
100
2.5V  VCC  5.5V
100
ns
ns
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
500
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
500
4.5V  VCC  5.5V
250
2.5V  VCC  5.5V
250
AC Test
4.5V  VCC  5.5V
100
CS = VIL
2.5V  VCC  5.5V
150
AC Test
AC Test
AC Test
Units
ns
ns
ns
ns
2.5V  VCC  5.5V
3
1,000,000
10
ms
Write Cycles
This parameter is ensured by characterization only.
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
5
5.
Instruction Set for the AT93C46D
Table 5-1.
Instruction Set for the AT93C46D
Address
Instruction
SB
Opcode
x8
x16
READ
1
10
A6 – A0
A5 – A0
EWEN
1
00
11XXXXX
11XXXX
ERASE
1
11
A6 – A0
A5 – A0
WRITE
1
01
A6 – A0
A5 – A0
ERAL
1
00
10XXXXX
10XXXX
WRAL
1
00
01XXXXX
01XXXX
EWDS
1
00
00XXXXX
00XXXX
Note:
6
Data
x8
x16
Reads data stored in memory, at
specified address.
Write enable must precede all
programming modes.
Erase memory location An – A0.
D7 – D0
D15 – D0
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
Writes memory location An – A0.
Erases all memory locations.
Valid only at VCC = 4.5V to 5.5V.
D7 – D0
D15 – D0
The ‘X’ in the address field represent don’t care values and must be clocked.
AT93C46D Automotive [DATASHEET]
Comments
Writes all memory locations.
Valid only at VCC = 4.5V to 5.5V.
Disables all programming.
instructions.
6.
Functional Description
The AT93C46D is accessed via a simple and versatile 3-wire serial communication interface. The device
operation is controlled by seven instructions issued by the host processor. A valid instruction starts with a rising
edge of CS and consists of a Start bit (Logic 1) followed by the appropriate Opcode and the desired memory
Address location.
READ: The READ instruction contains the address code for the memory location to be read. After the
instruction and address are decoded, data from the selected memory location is available at the Serial Output
(DO) pin. Output data changes are synchronized with the rising edges of Serial Clock (SK).
Note:
A dummy bit (Logic 0) precedes the 8- or 16-bit data output string.
Figure 6-1.
Read Timing
tCS
CS
SK
DI
1
1
0
AN
A0
High-impedance
DO
0
DN
D0
ERASE/WRITE (EWEN): To assure data integrity, the part automatically goes into the Erase/Write Disable
(EWDS) state when the power is first applied. An EWEN instruction must be executed first before any
programming instructions can be carried out.
Note:
Once in the EWEN state, programming remains enabled until an EWDS instruction is executed or VCC
power is removed from the part.
Figure 6-2.
EWEN Timing
tCS
CS
SK
DI
1
0
0
1
1
...
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
7
ERASE: The Erase instruction programs all of the bits in the specified memory location to the Logic 1 state. The
self-timed erase cycle starts once the ERASE instruction and address are decoded. The DO pin outputs the
Ready/Busy status of the part if CS is brought high after being kept low for a minimum of 250ns (tCS). A Logic 1
at the DO pin indicates that the selected memory location has been erased, and the part is ready for another
instruction.
Figure 6-3.
ERASE Timing
tCS
CS
Standby
Check
Status
SK
DI
1
1
1
AN
AN-1
AN-2
...
A0
tDF
tSV
DO
High-impedance
High-impedance
Busy
Ready
tWP
WRITE: The WRITE instruction contains the 8 or 16 bits of data to be written into the specified memory location.
The self-timed programming cycle, tWP, starts after the last bit of data is received at serial data input pin DI. The
DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low for a minimum of
250ns (tCS). A Logic 0 at DO indicates that programming is still in progress. A Logic 1 indicates that the memory
location at the specified address has been written with the data pattern contained in the instruction and the part
is ready for further instructions. A Ready/Busy status cannot be obtained if the CS is brought high after the end
of the self-timed programming cycle, tWP.
Figure 6-4.
Write Timing
tCS
CS
SK
DI
DO
1
0
1
AN
...
A0
DN
...
D0
High-impedance
Busy
tWP
8
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
Ready
Erase All (ERAL): The ERAL instruction programs every bit in the memory array to the Logic 1 state and is
primarily used for testing purposes. The DO pin outputs the Ready/Busy status of the part if CS is brought high
after being kept low for a minimum of 250ns (tCS). The ERAL instruction is valid only at
VCC = 5.0V 10%.
Figure 6-5.
ERAL Timing(1)
tCS
Standby
Check
Status
CS
SK
1
DI
0
0
1
0
tDF
tSV
High-impedance
DO
High-impedance
Busy
Ready
tWP
Note:
1.
Valid only at VCC = 4.5V to 5.5V.
WRITE ALL (WRAL): The WRAL instruction programs all memory locations with the data patterns specified in
the instruction. The DO pin outputs the Ready/Busy status of the part if CS is brought high after being kept low
for a minimum of 250 ns (tCS). The WRAL instruction is valid only at VCC = 5.0V ±10%.
Figure 6-6.
WRAL Timing(1)
tCS
CS
SK
1
DI
0
0
0
1
...
DN
...
D0
High-impedance
DO
Busy
Ready
tWP
Note:
1.
Valid only at VCC = 4.5V to 5.5V.
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
9
ERASE/WRITE DISABLE (EWDS): To protect against accidental data disturb, the EWDS instruction disables
all the programming modes and should be executed after all programming operations. The operation of the
READ instruction is independent of both the EWEN and EWDS instructions and can be executed at any time.
Figure 6-7.
EWDS Timing
tCS
CS
SK
1
DI
7.
0
0
0
...
0
Timing Diagrams
Figure 7-1.
Synchronous Data Timing
CS
SK
VIH
VIL
1µs (1)
tSKH
tCSS
VIL
tDIH
VIH
VIL
tPD0
DO (Read)
tPD1
VOL
tDF
VOH
Status Valid
VOL
Note:
1.
This is the minimum SK period.
Table 7-1.
Organization Key for the Timing Diagrams
AT93C46D (1K)
10
tDF
VOH
tSV
DO (Program)
tCSH
VIH
tDIS
DI
tSKL
I/O
x8
x 16
AN
A6
A5
DN
D7
D15
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
8.
Ordering Code Detail
AT 9 3 C 4 6 D N - S P 2 5 - T
Atmel Designator
Shipping Carrier Option
B or Blank = Bulk (Tubes)
T = Tape and Reel
Product Family
93C = 3-wire Automotive
Serial EEPROM
Operating Voltage
25 = 2.5V to 5.5V
Device Density
46 = 1 kilobit
Device Revision
Package Device Grade or
Wafer/Die Thickness
P = Lead-free / Halogen-free
Automotive Temperature Range
(-40°C to +125°C)
Package Variation
Package Option
(Package Type Dependant)
N = 0.150” with SOIC
S = JEDEC SOIC
T = TSSOP
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
11
9.
Part Markings
AT93C46D: Automotive Package Marking Information
8-lead TSSOP
8-lead SOIC
ATMLPYWW
### %
AAAAAAAA
PYWW
###%
Note: Lot Number and location of assembly
and on the bottom side of the package.
Note 1:
designates pin 1
Note 2: Package drawings are not to scale
Catalog Number Truncation
AT93C46D
Truncation Code ###: 46D
Date Codes
Y = Year
4: 2014
5: 2015
6: 2016
7: 2017
Voltages
8: 2018
9: 2019
0: 2020
1: 2021
M = Month
A: January
B: February
...
L: December
WW = Work Week of Assembly
02: Week 2
04: Week 4
...
52: Week 52
Country of Assembly
Lot Number
@ = Country of Assembly
AAA...A = Atmel Wafer Lot Number
Trace Code
% = Minimum Voltage
2: 2.5V min
Grade/Lead Finish Material
P: Automotive/NiPdAu
Atmel Truncation
XX = Trace Code (Atmel Lot Numbers Correspond to Code)
Example: AA, AB.... YZ, ZZ
AT: Atmel
ATM: Atmel
ATML: Atmel
3/13/14
TITLE
Package Mark Contact:
[email protected]
12
93C46DAM, AT93C46D Automotive Package Marking
Information
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
DRAWING NO.
REV.
93C46DAM
A
10.
Ordering Codes
Atmel Ordering Code
Lead Finish
Package
AT93C46DN-SP25-T(1)
AT93C46DN-SP25-B(2)
(1)
AT93C46D-TP25-T
1.
2.
Operation Range
2.5V to 5.5V
Automotive Temperature
(-40C to 125C)
8S1
Lead-free / Halogen-free
8X
AT93C46D-TP25-B(2)
Notes:
Voltage
Tape and reel delivery:

SOIC = 4,000 per reel.

TSSOP = 5,000 per reel.
Bulk delivery in tubes:

SOIC and TSSOP = 100 per tube.
Package Type
8S1
8-lead, 0.15" wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8X
8-lead, 4.40mm body, Plastic Thin Shrink Small Outline Package (TSSOP)
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
13
11.
Packaging Information
11.1
8S1 — 8-lead JEDEC SOIC
C
1
E
E1
L
N
Ø
TOP VIEW
END VIEW
e
b
COMMON DIMENSIONS
(Unit of Measure = mm)
A
A1
D
SIDE VIEW
Notes: This drawing is for general information only.
Refer to JEDEC Drawing MS-012, Variation AA
for proper dimensions, tolerances, datums, etc.
SYMBOL MIN
A
1.35
NOM
MAX
–
1.75
A1
0.10
–
0.25
b
0.31
–
0.51
C
0.17
–
0.25
D
4.80
–
5.05
E1
3.81
–
3.99
E
5.79
–
6.20
e
NOTE
1.27 BSC
L
0.40
–
1.27
Ø
0°
–
8°
6/22/11
Package Drawing Contact:
[email protected]
14
TITLE
8S1, 8-lead (0.150” Wide Body), Plastic Gull Wing
Small Outline (JEDEC SOIC)
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
GPC
SWB
DRAWING NO.
REV.
8S1
G
11.2
8X — 8-lead TSSOP
C
1
Pin 1 indicator
this corner
E1
E
L1
N
L
Top View
End View
A
b
A1
e
COMMON DIMENSIONS
(Unit of Measure = mm)
A2
D
SYMBOL
Side View
Notes:
1. This drawing is for general information only.
Refer to JEDEC Drawing MO-153, Variation AA, for proper
dimensions, tolerances, datums, etc.
2. Dimension D does not include mold Flash, protrusions or gate
burrs. Mold Flash, protrusions and gate burrs shall not exceed
0.15mm (0.006in) per side.
3. Dimension E1 does not include inter-lead Flash or protrusions.
Inter-lead Flash and protrusions shall not exceed 0.25mm
(0.010in) per side.
4. Dimension b does not include Dambar protrusion.
Allowable Dambar protrusion shall be 0.08mm total in excess
of the b dimension at maximum material condition. Dambar
cannot be located on the lower radius of the foot. Minimum
space between protrusion and adjacent lead is 0.07mm.
5. Dimension D and E1 to be determined at Datum Plane H.
MIN
NOM
MAX
A
-
-
1.20
A1
0.05
-
0.15
A2
0.80
1.00
1.05
D
2.90
3.00
3.10
2, 5
E
NOTE
6.40 BSC
E1
4.30
4.40
4.50
3, 5
b
0.19
0.25
0.30
4
e
L
0.65 BSC
0.45
L1
C
0.60
0.75
1.00 REF
0.09
-
0.20
2/27/14
TITLE
Package Drawing Contact:
[email protected]
GPC
8X, 8-lead 4.4mm Body, Plastic Thin
Shrink Small Outline Package (TSSOP)
TNR
DRAWING NO.
8X
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
REV.
E
15
12.
16
Revision History
Doc. Rev.
Date
Comments
8674C
10/2014
Update the 8S1 and the 8A2 to 8X packages, template, Atmel logos, and disclaimer page.
No change in functional specification.
8674B
10/2009
Updated Lit number and date and removed preliminary status.
8674A
4/2009
Initial document release.
AT93C46D Automotive [DATASHEET]
Atmel-8674C-SEEPROM-AT93C46D-Automotive-Datasheet_102014
XXXXXX
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authorized, or warranted for use as components in applications intended to support or sustain life.
SAFETY-CRITICAL, MILITARY, AND AUTOMOTIVE APPLICATIONS DISCLAIMER: Atmel products are not designed for and will not be used in connection with any applications where
the failure of such products would reasonably be expected to result in significant personal injury or death (“Safety-Critical Applications”) without an Atmel officer's specific written
consent. Safety-Critical Applications include, without limitation, life support devices and systems, equipment or systems for the operation of nuclear facilities and weapons systems.
Atmel products are not designed nor intended for use in military or aerospace applications or environments unless specifically designated by Atmel as military-grade. Atmel products are
not designed nor intended for use in automotive applications unless specifically designated by Atmel as automotive-grade.
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