ATMEL AT24C01B

Features
• Low-voltage and Standard-voltage Operation
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized 128 x 8 (1K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (1K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms max)
High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
• Lead-free/Halogen-free
• Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
•
•
•
•
•
•
•
•
•
•
Two-wire
Serial EEPROM
1K (128 x 8)
AT24C01B
Description
The AT24C01B provides 1024 bits of serial electrically erasable and programmable
read-only memory (EEPROM) organized as 128 words of 8 bits each. The device is
optimized for use in many industrial and commercial applications where low-power
and low-voltage operation are essential. The AT24C01B is available in space-saving
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead
SOT23, 8-lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire
serial interface. In addition, the AT24C01B is available in 1.8V (1.8V to 5.5V) version.
Preliminary
Table 1. Pin Configuration
Pin Name
Function
A0 - A2
Address Inputs
SDA
Serial Data
SCL
Serial Clock Input
WP
Write Protect
NC
No Connect
GND
Ground
VCC
Power Supply
8-lead Ultra Thin Mini-MAP (MLP 2x3)
VCC
WP
SCL
SDA
8
7
6
5
1
2
3
4
A0
A1
A2
GND
8-ball dBGA2
VCC
WP
SCL
SDA
Bottom View
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
1
GND
2
SDA
3
2 A1
6
3 A2
5
4 GND
8-lead SOIC
A0
A1
A2
GND
1
2
3
4
VCC
WP
SCL
SDA
8
7
6
5
8-lead PDIP
5-lead SOT23
SCL
1 A0
7
Bottom View
8-lead TSSOP
A0
A1
A2
GND
8
5
WP
4
VCC
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
5156B–SEEPR–5/06
1
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
*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.
DC Output Current........................................................ 5.0 mA
Figure 1. Block Diagram
2
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
Pin Description
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each
EEPROM device and negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is
open-drain driven and may be wire-ORed with any number of other open-drain or opencollector devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1 and A0 pins are device
address inputs that are hard wired for the AT24C01B. As many as eight 1K devices may
be addressed on a single bus system (device addressing is discussed in detail under
the Device Addressing section).
WRITE PROTECT (WP): The AT24C01B has a write protect pin that provides hardware
data protection. The write protect pin allows normal read/write operations when connected to ground (GND). When the write protect pin is connected to V CC , the write
protection feature is enabled and operates as shown in Table 2.
Table 2. Write Protect
Part of the Array Protected
WP Pin
Status
Memory Organization
24C01B
At VCC
Full (1K) Array
At GND
Normal Read/Write Operations
AT24C01B, 1K SERIAL EEPROM: Internally organized with 16 pages of 8 bytes each,
the 1K requires an 7-bit data word address for random word addressing. (See Figure 8
on page 11)
3
5156B–SEEPR–5/06
Table 3. Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +1.8V
Symbol
Test Condition
CI/O
CIN
Note:
Max
Units
Conditions
Input/Output Capacitance (SDA)
8
pF
VI/O = 0V
Input Capacitance (A0, A1, A2, SCL)
6
pF
VIN = 0V
1. This parameter is characterized and is not 100% tested.
Table 4. DC Characteristics
Applicable over recommended operating range from: TAI = –40°C to +85°C, VCC = +1.8V to +5.5V, VCC = +1.8V to +5.5V
(unless otherwise noted)
Symbol
Parameter
VCC1
Supply Voltage
VCC2
Test Condition
Max
Units
1.8
5.5
V
Supply Voltage
2.5
5.5
V
VCC3
Supply Voltage
2.7
5.5
V
VCC4
Supply Voltage
4.5
5.5
V
ICC
Supply Current VCC = 5.0V
READ at 100 kHz
0.4
1.0
mA
ICC
Supply Current VCC = 5.0V
WRITE at 100 kHz
2.0
3.0
mA
ISB1
Standby Current VCC = 1.8V
VIN = VCC or VSS
0.6
3.0
µA
ISB2
Standby Current VCC = 2.5V
VIN = VCC or VSS
1.4
4.0
µA
ISB3
Standby Current VCC = 2.7V
VIN = VCC or VSS
1.6
4.0
µA
ISB4
Standby Current VCC = 5.0V
VIN = VCC or VSS
8.0
18.0
µA
ILI
Input Leakage Current
VIN = VCC or VSS
0.10
3.0
µA
ILO
Output Leakage Current
VOUT = VCC or VSS
0.05
3.0
µA
VIL
Input Low Level(1)
–0.6
VCC x 0.3
V
VCC x 0.7
VCC + 0.5
V
(1)
Min
Typ
VIH
Input High Level
VOL2
Output Low Level VCC = 3.0V
IOL = 2.1 mA
0.4
V
VOL1
Output Low Level VCC = 1.8V
IOL = 0.15 mA
0.2
V
Note:
4
1. VIL min and VIH max are reference only and are not tested.
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
Table 5. AC Characteristics
Applicable over recommended operating range from TAI = –40°C to +85°C, VCC = +1.8V to +5.5V, CL = 1 TTL Gate and
100 pF (unless otherwise noted)
1.8, 2.5, 2.7
Min
Max
5.0-volt
Symbol
Parameter
Min
fSCL
Clock Frequency, SCL
tLOW
Clock Pulse Width Low
1.2
0.4
µs
tHIGH
Clock Pulse Width High
0.6
0.4
µs
tI
Noise Suppression Time
tAA
Clock Low to Data Out Valid
0.1
tBUF
Time the bus must be free before a new transmission can start
1.2
0.5
µs
tHD.STA
Start Hold Time
0.6
0.25
µs
tSU.STA
Start Setup Time
0.6
0.25
µs
tHD.DAT
Data In Hold Time
0
0
µs
tSU.DAT
Data In Setup Time
100
100
ns
tR
Inputs Rise Time(1)
400
50
(1)
0.9
0.05
Max
Units
1000
kHz
40
ns
0.55
µs
0.3
0.3
µs
300
100
ns
tF
Inputs Fall Time
tSU.STO
Stop Setup Time
0.6
.25
µs
tDH
Data Out Hold Time
50
50
ns
tWR
Write Cycle Time
Endurance(1)
5.0V, 25°C, Byte Mode
Note:
5
1M
5
ms
Write
Cycles
1. This parameter is ensured by characterization only.
5
5156B–SEEPR–5/06
Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data on the SDA pin may change only during SCL low time periods (see
Figure 4 on page 7). Data changes during SCL high periods will indicate a start or stop
condition as defined below.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition
which must precede any other command (see Figure 5 on page 8).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition.
After a read sequence, the stop command will place the EEPROM in a standby power
mode (see Figure 5 on page 8).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the
EEPROM in 8-bit words. The EEPROM sends a zero to acknowledge that it has
received each word. This happens during the ninth clock cycle.
STANDBY MODE: The AT24C01B features a low-power standby mode which is
enabled: (a) upon power-up and (b) after the receipt of the STOP bit and the completion
of any internal operations.
MEMORY RESET: After an interruption in protocol, power loss or system reset, any 2wire part can be reset by following these steps:
1. Clock up to 9 cycles.
2. Look for SDA high in each cycle while SCL is high.
3. Create a start condition.
6
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
Bus Timing
Figure 2. SCL: Serial Clock, SDA: Serial Data I/O®
Write Cycle Timing
Figure 3. SCL: Serial Clock, SDA: Serial Data I/O
SCL
SDA
8th BIT
ACK
WORDn
twr
STOP
CONDITION
Note:
(1)
START
CONDITION
1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle.
Figure 4. Data Validity
7
5156B–SEEPR–5/06
Figure 5. Start and Stop Definition
Figure 6. Output Acknowledge
8
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
Device Addressing
The 1K EEPROM device requires an 8-bit device address word following a start condition to enable the chip for a read or write operation (refer to Figure 7).
The device address word consists of a mandatory one, zero sequence for the first four
most significant bits as shown. This is common to all the EEPROM devices.
The next 3 bits are the A2, A1 and A0 device address bits for the 1K EEPROM. These 3
bits must compare to their corresponding hard-wired input pins.
The eighth bit of the device address is the read/write operation select bit. A read operation is initiated if this bit is high and a write operation is initiated if this bit is low.
Upon a compare of the device address, the EEPROM will output a zero. If a compare is
not made, the chip will return to a standby state.
Write Operations
BYTE WRITE: A write operation requires an 8-bit data word address following the
device address word and acknowledgment. Upon receipt of this address, the EEPROM
will again respond with a zero and then clock in the first 8-bit data word. Following
receipt of the 8-bit data word, the EEPROM will output a zero and the addressing
device, such as a microcontroller, must terminate the write sequence with a stop condition. At this time the EEPROM enters an internally timed write cycle, t WR , to the
nonvolatile memory. All inputs are disabled during this write cycle and the EEPROM will
not respond until the write is complete (see Figure 8 on page 11).
PAGE WRITE: The 1K EEPROM is capable of an 8-byte page write.
A page write is initiated the same as a byte write, but the microcontroller does not send
a stop condition after the first data word is clocked in. Instead, after the EEPROM
acknowledges receipt of the first data word, the microcontroller can transmit up to seven
data words. The EEPROM will respond with a zero after each data word received. The
microcontroller must terminate the page write sequence with a stop condition (see Figure 9 on page 11).
The data word address lower three bits are internally incremented following the receipt
of each data word. The higher data word address bits are not incremented, retaining the
memory page row location. When the word address, internally generated, reaches the
page boundary, the following byte is placed at the beginning of the same page. If more
than eight data words are transmitted to the EEPROM, the data word address will “roll
over” and previous data will be overwritten.
ACKNOWLEDGE POLLING: Once the internally timed write cycle has started and the
EEPROM inputs are disabled, acknowledge polling can be initiated. This involves sending a start condition followed by the device address word. The read/write bit is
representative of the operation desired. Only if the internal write cycle has completed
will the EEPROM respond with a zero allowing the read or write sequence to continue.
Read Operations
Read operations are initiated the same way as write operations with the exception that
the read/write select bit in the device address word is set to one. There are three read
operations: current address read, random address read and sequential read.
CURRENT ADDRESS READ: The internal data word address counter maintains the
last address accessed during the last read or write operation, incremented by one. This
address stays valid between operations as long as the chip power is maintained. The
address “roll over” during read is from the last byte of the last memory page to the first
9
5156B–SEEPR–5/06
byte of the first page. The address “roll over” during write is from the last byte of the current
page to the first byte of the same page.
Once the device address with the read/write select bit set to one is clocked in and acknowledged by the EEPROM, the current address data word is serially clocked out. The
microcontroller does not respond with an input zero but does generate a following stop condition (see Figure 10 on page 11).
RANDOM READ: A random read requires a “dummy” byte write sequence to load in the data
word address. Once the device address word and data word address are clocked in and
acknowledged by the EEPROM, the microcontroller must generate another start condition.
The microcontroller now initiates a current address read by sending a device address with the
read/write select bit high. The EEPROM acknowledges the device address and serially clocks
out the data word. The microcontroller does not respond with a zero but does generate a following stop condition (see Figure 11 on page 12).
SEQUENTIAL READ: Sequential reads are initiated by either a current address read or a random address read. After the microcontroller receives a data word, it responds with an
acknowledge. As long as the EEPROM receives an acknowledge, it will continue to increment
the data word address and serially clock out sequential data words. When the memory
address limit is reached, the data word address will “roll over” and the sequential read will continue. The sequential read operation is terminated when the microcontroller does not respond
with a zero but does generate a following stop condition (see Figure 12 on page 12).
10
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
Figure 7. Device Address
1K
Figure 8. Byte Write
*
Figure 9. Page Write
*
(*
= Don’t Care Bit)
Figure 10. Current Address Read
11
5156B–SEEPR–5/06
Figure 11. Random Read
*
(* = Don’t Care Bit)
Figure 12. Sequential Read
12
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
AT24C01B Ordering Information
Ordering Code
Package
AT24C01B-PU (Bulk form only)
AT24C01BN-SH-B(1) (NiPdAu Lead Finish)
AT24C01BN-SH-T(2) (NiPdAu Lead Finish)
AT24C01B-TH-B(1) (NiPdAu Lead Finish)
AT24C01B-TH-T(2) (NiPdAu Lead Finish)
AT24C01BY6-YH-T(2) (NiPdAu Lead Finish)
AT24C01B-TSU-T(2)
AT24C01BU3-UU-T(2)
8P3
8S1
8S1
8A2
8A2
8Y6
5TS1
8U3-1
AT24C01B-W-11(3)
Die Sale
Notes:
Operation Range
Lead-free/Halogen-free/
Industrial Temperature
(–40°C to 85°C)
Industrial Temperature
(–40°C to 85°C)
1. “-B” denotes bulk.
2. “-T” denotes tape and reel. SOIC = 4K per reel. TSSOP, Ultra Thin Mini MAP, SOT 23 and dBGA2 = 5K per reel.
3. Available in waffle pack, tape and reel, and wafer form; order as SL788 for inkless wafer form. Bumped die available upon
request. Please contact Serial EEPROM Marketing.
Package Type
8P3
8-lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8S1
8-lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC)
8A2
8-lead, 4.4 mm Body, Plastic Thin Shrink Small Outline Package (TSSOP)
8Y6
8-lead, 2.0 mm x 3.00 mm Body, 0.50 mm Pitch, Ultra Thin Mini-MAP, Dual No Lead Package (DFN), (MLP 2x3 mm)
5TS1
5-lead, 2.90 mm x 1.60 mm Body, Plastic Thin Shrink Small Outline Package (SOT23)
8U3-1
8-ball, die Ball Grid Away Package (dBGA2)
Options
–1.8
Low-voltage (1.8V to 5.5V)
13
5156B–SEEPR–5/06
Packaging Information
8P3 – PDIP
E
1
E1
N
Top View
c
eA
End View
COMMON DIMENSIONS
(Unit of Measure = inches)
D
e
D1
A2 A
b2
L
b3
b
4 PLCS
Side View
SYMBOL
NOM
MAX
NOTE
2
A
–
–
0.210
A2
0.115
0.130
0.195
b
0.014
0.018
0.022
5
b2
0.045
0.060
0.070
6
b3
0.030
0.039
0.045
6
c
0.008
0.010
0.014
D
0.355
0.365
0.400
3
D1
0.005
–
–
3
E
0.300
0.310
0.325
4
E1
0.240
0.250
0.280
3
e
0.100 BSC
eA
0.300 BSC
L
Notes:
MIN
0.115
0.130
4
0.150
2
1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA, for additional information.
2. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3.
3. D, D1 and E1 dimensions do not include mold Flash or protrusions. Mold Flash or protrusions shall not exceed 0.010 inch.
4. E and eA measured with the leads constrained to be perpendicular to datum.
5. Pointed or rounded lead tips are preferred to ease insertion.
6. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed 0.010 (0.25 mm).
01/09/02
R
14
2325 Orchard Parkway
San Jose, CA 95131
TITLE
8P3, 8-lead, 0.300" Wide Body, Plastic Dual
In-line Package (PDIP)
DRAWING NO.
REV.
8P3
B
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
8S1 – JEDEC SOIC
C
1
E
E1
L
N
∅
Top View
End View
e
B
COMMON DIMENSIONS
(Unit of Measure = mm)
A
SYMBOL
A1
D
Side View
MIN
NOM
MAX
A
1.35
–
1.75
A1
0.10
–
0.25
b
0.31
–
0.51
C
0.17
–
0.25
D
4.80
–
5.00
E1
3.81
–
3.99
E
5.79
–
6.20
e
NOTE
1.27 BSC
L
0.40
–
1.27
∅
0˚
–
8˚
Note: These drawings are for general information only. Refer to JEDEC Drawing MS-012, Variation AA for proper dimensions, tolerances, datums, etc.
10/7/03
R
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TITLE
8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing
Small Outline (JEDEC SOIC)
DRAWING NO.
8S1
REV.
B
15
5156B–SEEPR–5/06
8A2 – TSSOP
3
2 1
Pin 1 indicator
this corner
E1
E
L1
N
L
Top View
End View
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
D
A
b
MIN
NOM
MAX
NOTE
2.90
3.00
3.10
2, 5
3, 5
E
e
A2
D
6.40 BSC
E1
4.30
4.40
4.50
A
–
–
1.20
A2
0.80
1.00
1.05
b
0.19
–
0.30
e
Side View
L
4
0.65 BSC
0.45
L1
0.60
0.75
1.00 REF
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
0.15 mm (0.006 in) per side.
3. Dimension E1 does not include inter-lead Flash or protrusions. Inter-lead Flash and protrusions shall not exceed 0.25 mm
(0.010 in) per side.
4. Dimension b does not include Dambar protrusion. Allowable Dambar protrusion shall be 0.08 mm 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 0.07 mm.
5. Dimension D and E1 to be determined at Datum Plane H.
5/30/02
R
16
2325 Orchard Parkway
San Jose, CA 95131
TITLE
8A2, 8-lead, 4.4 mm Body, Plastic
Thin Shrink Small Outline Package (TSSOP)
DRAWING NO.
8A2
REV.
B
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
8Y6 - Mini Map
D2
A
b
(8X)
E
E2
Pin 1
Index
Area
Pin 1 ID
L (8X)
D
A2
e (6X)
A1
1.50 REF.
A3
COMMON DIMENSIONS
(Unit of Measure = mm)
SYMBOL
MIN
D
E
D2
MAX
1.50
1.60
E2
-
-
1.40
A
-
-
0.60
A1
0.0
0.02
0.05
A2
-
-
0.55
L
0.20 REF
0.20
e
b
NOTE
3.00 BSC
1.40
A3
Notes:
NOM
2.00 BSC
0.30
0.40
0.50 BSC
0.20
0.25
0.30
2
1. This drawing is for general information only. Refer to JEDEC Drawing MO-229, for proper dimensions,
tolerances, datums, etc.
2. Dimension b applies to metallized terminal and is measured between 0.15 mm and 0.30 mm from the terminal tip. If the
terminal has the optional radius on the other end of the terminal, the dimension should not be measured in that radius area.
8/26/05
R
2325 Orchard Parkway
San Jose, CA 95131
DRAWING NO.
TITLE
8Y6, 8-lead 2.0 x 3.0 mm Body, 0.50 mm Pitch, Utlra Thin Mini-Map,
8Y6
Dual No Lead Package (DFN), (MLP 2x3)
REV.
C
17
5156B–SEEPR–5/06
5TS1 – SOT23
e1
C
4
5
E1
C
L
E
L1
1
3
2
End View
Top View
b
A2
Seating
Plane
e
A
A1
D
COMMON DIMENSIONS
(Unit of Measure = mm)
Side View
NOTES: 1. This drawing is for general information only. Refer to JEDEC Drawing
MO-193, Variation AB, for additional information.
2. Dimension D does not include mold flash, protrusions, or gate burrs.
Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm per end.
Dimension E1 does not include interlead flash or protrusion. Interlead
flash or protrusion shall not exceed 0.15 mm per side.
3. The package top may be smaller than the package bottom. Dimensions
D and E1 are determined at the outermost extremes of the plastic body
exclusive of mold flash, tie bar burrs, gate burrs, and interlead flash, but
including any mismatch between the top and bottom of the plastic body.
4. These dimensions apply to the flat section of the lead between 0.08 mm
and 0.15 mm from the lead tip.
5. Dimension "b" does not include Dambar protrusion. Allowable Dambar
protrusion shall be 0.08 mm total in excess of the "b" dimension at
maximum material condition. The Dambar cannot be located on the lower
radius of the foot. Minimum space between protrusion and an adjacent lead
shall not be less than 0.07 mm.
SYMBOL
MIN
NOM
MAX
A
–
–
1.10
A1
0.00
–
0.10
A2
0.70
0.90
1.00
c
0.08
–
0.20
NOTE
4
D
2.90 BSC
2, 3
E
2.80 BSC
2, 3
E1
1.60 BSC
2, 3
L1
0.60 REF
e
0.95 BSC
e1
1.90 BSC
b
0.30
–
0.50
4, 5
6/25/03
R
18
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TITLE
5TS1, 5-lead, 1.60 mm Body, Plastic Thin Shrink
Small Outline Package (SHRINK SOT)
DRAWING NO.
PO5TS1
REV.
A
AT24C01B [Preliminary]
5156B–SEEPR–5/06
AT24C01B [Preliminary]
8U3-1 – dBGA2
E
D
1.
b
A1
PIN 1 BALL PAD CORNER
A2
Top View
A
Side View
PIN 1 BALL PAD CORNER
1
2
3
4
8
7
6
5
(d1)
d
e
COMMON DIMENSIONS
(Unit of Measure = mm)
(e1)
Bottom View
8 SOLDER BALLS
1. Dimension “b” is measured at the maximum solder ball diameter.
This drawing is for general information only.
SYMBOL
MIN
NOM
MAX
A
0.71
0.81
0.91
A1
0.10
0.15
0.20
A2
0.40
0.45
0.50
b
0.20
0.25
0.30
D
NOTE
1.50 BSC
E
2.00 BSC
e
0.50 BSC
e1
0.25 REF
d
1.00 BSC
d1
0.25 REF
6/24/03
R
1150 E. Cheyenne Mtn. Blvd.
Colorado Springs, CO 80906
TITLE
8U3-1, 8-ball, 1.50 x 2.00 mm Body, 0.50 mm pitch,
Small Die Ball Grid Array Package (dBGA2)
DRAWING NO.
REV.
PO8U3-1
A
19
5156B–SEEPR–5/06
Revision History
20
Doc. Rev.
Comments
5156B
Ordering information changed; added -B denotes bulk; added bulk ordering
codes; added tape and reel ordering codes
5156A
Initial document release
AT24C01B [Preliminary]
5156B–SEEPR–5/06
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