16 kb CMOS PARALLEL EEPROM

CAT28C16A
16 kb CMOS Parallel
EEPROM
Description
The CAT28C16A is a fast, low power, 5V−only CMOS Parallel
EEPROM organized as 2K x 8−bits. It requires a simple interface for
in−system programming. On−chip address and data latches,
self−timed write cycle with auto−clear and VCC power up/down write
protection eliminate additional timing and protection hardware. DATA
Polling signals the start and end of the self−timed write cycle.
Additionally, the CAT28C16A features hardware write protection.
The CAT28C16A is manufactured using ON Semiconductor’s
advanced CMOS floating gate technology. It is designed to endure
100,000 program/erase cycles and has a data retention of 100 years.
The device is available in JEDEC approved 24−pin DIP and SOIC or
32−pin PLCC packages.
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SOIC−24
J, K, W, X SUFFIX
CASE 751BK
Features
• Fast Read Access Times: 90 ns, 120 ns, 200 ns
• Low Power CMOS Dissipation:
•
•
•
•
•
•
•
•
PDIP−24
L SUFFIX
CASE 646AD
– Active: 25 mA Max.
– Standby: 100 mA Max.
Simple Write Operation:
– On−chip Address and Data Latches
– Self−timed Write Cycle with Auto−clear
Fast Write Cycle Time: 10 ms Max
End of Write Detection: DATA Polling
Hardware Write Protection
CMOS and TTL Compatible I/O
100,000 Program/Erase Cycles
100 Year Data Retention
Commercial, Industrial and Automotive Temperature Ranges
PIN FUNCTION
Pin Name
A0−A10
I/O0−I/O7
PIN CONFIGURATION
DIP Package (L)
SOIC Package (J, K, W, X)
24
23
3
22
4
21
5
6
20
19
7
8
18
17
9
16
10
11
15
14
12
13
A7
NC
NC
NC
VCC
WE
NC
1
2
PLCC Package (N, G)
VCC
A8
A9
WE
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
A6
A5
A4
A3
A2
A1
A0
NC
I/O0
© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 6
Function
Address Inputs
Data Inputs/Outputs
CE
Chip Enable
OE
Output Enable
WE
Write Enable
VCC
5 V Supply
VSS
Ground
NC
No Connect
ORDERING INFORMATION
4 3 2 1 32 31 30
5
29
6
28
7
27
8
26
9
25
TOP VIEW
10
24
11
23
12
22
13
21
14 15 16 17 18 19 20
A8
A9
NC
NC
OE
A10
CE
I/O7
I/O6
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
I/O1
I/O2
VSS
NC
I/O3
I/O4
I/O5
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
VSS
PLCC−32
N, G SUFFIX
CASE 776AK
1
Publication Order Number:
CAT28C16A/D
CAT28C16A
VCC
INADVERTENT
WRITE
PROTECTION
CE
OE
WE
CONTROL
LOGIC
2,048 x 8
EEPROM
ARRAY
ROW
DECODER
ADDR. BUFFER
& LATCHES
A4−A10
HIGH VOLTAGE
GENERATOR
I/O BUFFERS
TIMER
DATA POLLING
I/O0−I/O7
ADDR. BUFFER
& LATCHES
A0−A3
COLUMN
DECODER
Figure 1. Block Diagram
Table 1. MODE SELECTION
Mode
CE
WE
Read
L
H
Byte Write (WE Controlled)
L
Byte Write (CE Controlled)
OE
I/O
Power
L
DOUT
ACTIVE
H
DIN
ACTIVE
L
H
DIN
ACTIVE
Standby, and Write Inhibit
H
X
X
High−Z
STANDBY
Read and Write Inhibit
X
H
H
High−Z
ACTIVE
Max
Conditions
Units
Table 2. CAPACITANCE (TA = 25°C, f = 1.0 MHz, VCC = 5 V)
Symbol
Test
CI/O (Note 1)
Input/Output Capacitance
10
VI/O = 0 V
pF
CIN (Note 1)
Input Capacitance
6
VIN = 0 V
pF
1. This parameter is tested initially and after a design or process change that affects the parameter.
Table 3. ABSOLUTE MAXIMUM RATINGS
Parameters
Ratings
Units
Temperature Under Bias
–55 to +125
°C
Storage Temperature
–65 to +150
°C
–2.0 V to +VCC + 2.0 V
V
−2.0 to +7.0
V
Package Power Dissipation Capability (TA = 25°C)
1.0
W
Lead Soldering Temperature (10 secs)
300
°C
Output Short Circuit Current (Note 3)
100
mA
Voltage on Any Pin with Respect to Ground (Note 2)
VCC with Respect to Ground
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
2. The minimum DC input voltage is −0.5 V. During transitions, inputs may undershoot to −2.0 V for periods of less than 20 ns. Maximum DC
voltage on output pins is VCC + 0.5 V, which may overshoot to VCC + 2.0 V for periods of less than 20 ns.
3. Output shorted for no more than one second. No more than one output shorted at a time.
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2
CAT28C16A
Table 4. RELIABILITY CHARACTERISTICS (Note 4)
Symbol
Parameter
NEND (Note 5)
Endurance
TDR (Notes 5)
Data Retention
VZAP
ILTH (Note 6)
Min
ESD Susceptibility
Latch−Up
Max
Units
100,000
Cycles/Byte
100
Years
2,000
V
100
mA
4. This parameter is tested initially and after a design or process change that affects the parameter.
5. For the CAT28C16A−20, the minimum endurance is 10,000 cycles and the minimum data retention is 10 years.
6. Latch−up protection is provided for stresses up to 100 mA on address and data pins from −1 V to VCC + 1 V.
Table 5. D.C. OPERATING CHARACTERISTICS (VCC = 5 V ±10%, unless otherwise specified.)
Limits
Symbol
ICC
Parameter
Min
Test Conditions
Typ
Max
Units
VCC Current (Operating, TTL)
CE = OE = VIL,
f = 1/tRC min, All I/O’s Open
35
mA
VCC Current (Operating, CMOS)
CE = OE = VILC,
f = 1/tRC min, All I/O’s Open
25
mA
VCC Current (Standby, TTL)
CE = VIH, All I/O’s Open
1
mA
VCC Current (Standby, CMOS)
CE = VIHC, All I/O’s Open
100
mA
ILI
Input Leakage Current
VIN = GND to VCC
−10
10
mA
ILO
Output Leakage Current
VOUT = GND to VCC,
CE = VIH
−10
10
mA
VIH (Note 8)
High Level Input Voltage
2
VCC + 0.3
V
VIL (Note 7)
Low Level Input Voltage
−0.3
0.8
V
ICCC (Note 7)
ISB
ISBC (Note 8)
VOH
High Level Output Voltage
IOH = −400 mA
VOL
Low Level Output Voltage
IOL = 2.1 mA
VWI
Write Inhibit Voltage
2.4
V
0.4
3.0
V
V
7. VILC = −0.3 V to +0.3 V
8. VIHC = VCC − 0.3 V to VCC + 0.3 V
Table 6. A.C. CHARACTERISTICS, READ CYCLE (VCC = 5 V ±10%, unless otherwise specified.)
28C16A−90
Symbol
Parameter
Min
Max
90
28C16A−12
Min
Max
Min
Max
Read Cycle Time
tCE
CE Access Time
90
120
200
ns
tAA
Address Access Time
90
120
200
ns
tOE
OE Access Time
50
60
80
ns
CE Low to Active Output
0
tOLZ (Note 9)
OE Low to Active Output
0
200
Units
tRC
tLZ (Note 9)
120
28C16A−20
0
ns
0
0
ns
0
ns
tHZ (Notes 9, 10)
CE High to High−Z Output
50
50
55
ns
tOHZ (Notes 9,
10)
OE High to High−Z Output
50
50
55
ns
tOH (Note 9)
Output Hold from Address Change
0
0
0
9. This parameter is tested initially and after a design or process change that affects the parameter.
10. Output floating (High−Z) is defined as the state when the external data line is no longer driven by the output buffer.
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3
ns
CAT28C16A
2.4 V
2.0 V
INPUT PULSE LEVELS
REFERENCE POINTS
0.8 V
0.45 V
Figure 2. A.C. Testing Input/Output Waveform (Note 11)
11. Input rise and fall times (10% and 90%) < 10 ns.
1.3V
1N914
3.3K
DEVICE
UNDER
TEST
OUT
CL = 100 pF
CL INCLUDES JIG CAPACITANCE
Figure 3. A.C. Testing Load Circuit (example)
Table 7. A.C. CHARACTERISTICS, WRITE CYCLE (VCC = 5 V ±10%, unless otherwise specified.)
28C16A−90
Parameter
Symbol
Min
Max
28C16A−12
Min
Max
5
28C16A−20
Min
5
Max
Units
10
ms
tWC
Write Cycle Time
tAS
Address Setup Time
0
0
10
ns
tAH
Address Hold Time
100
100
100
ns
tCS
CE Setup Time
0
0
0
ns
tCH
CE Hold Time
0
0
0
ns
tCW (Note 12)
CE Pulse Time
110
110
150
ns
tOES
OE Setup Time
0
0
15
ns
tOEH
OE Hold Time
0
0
15
ns
tWP (Note 12)
WE Pulse Width
110
110
150
ns
tDS
Data Setup Time
60
60
50
ns
tDH
Data Hold Time
0
0
10
ns
tDL
Data Latch Time
5
10
5
10
50
ns
0.05
100
0.05
100
5
tINIT (Note 13)
Write Inhibit Period After Power−up
12. A write pulse of less than 20 ns duration will not initiate a write cycle.
13. This parameter is tested initially and after a design or process change that affects the parameter.
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4
20
ms
CAT28C16A
DEVICE OPERATION
Read
Data stored in the CAT28C16A is transferred to the data bus when WE is held high, and both OE and CE are held low. The
data bus is set to a high impedance state when either CE or OE goes high. This 2−line control architecture can be used to
eliminate bus contention in a system environment.
tRC
ADDRESS
tCE
CE
tOE
OE
WE
tOLZ
VIH
tLZ
tHZ
tOH
HIGH−Z
DATA OUT
tOHZ
tAA
DATA VALID
DATA VALID
Figure 4. Read Cycle
tWC
ADDRESS
tAS
tAH
tCH
tCS
CE
OE
tOES
tOEH
tWP
WE
tDL
DATA OUT
DATA IN
HIGH−Z
DATA VALID
tDS
tDH
Figure 5. Byte Write Cycle [WE Controlled]
Byte Write
edge of WE or CE, whichever occurs last. Data, conversely,
is latched on the rising edge of WE or CE, whichever occurs
first. Once initiated, a byte write cycle automatically erases
the addressed byte and the new data is written within 10 ms.
A write cycle is executed when both CE and WE are low,
and OE is high. Write cycles can be initiated using either WE
or CE, with the address input being latched on the falling
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5
CAT28C16A
DATA Polling
complement of that data on I/O7 (I/O0–I/O6 are
indeterminate) until the programming cycle is complete.
Upon completion of the self−timed byte write cycle, all I/O’s
will output true data during a read cycle.
DATA polling is provided to indicate the completion of a
byte write cycle. Once a byte write cycle is initiated,
attempting to read the last byte written will output the
tWC
ADDRESS
tAS
tAH
tDL
tCW
CE
tOEH
OE
tCS
tOES
tCH
WE
HIGH−Z
DATA OUT
DATA IN
DATA VALID
tDS
tDH
Figure 6. Byte Write Cycle [CE Controlled]
ADDRESS
CE
WE
tOEH
tOES
tOE
OE
tWC
I/O7
DOUT = X
DIN = X
DOUT = X
Figure 7. DATA Polling
Hardware Data Protection
The following is a list of hardware data protection features
that are incorporated into the CAT28C16A.
1. VCC sense provides for write protection when VCC
falls below 3.0 V min.
2. A power on delay mechanism, tINIT (see AC
characteristics), provides a 5 to 20 ms delay before
a write sequence, after VCC has reached 3.0 V
min.
3. Write inhibit is activated by holding any one of
OE low, CE high or WE high.
4. Noise pulses of less than 20 ns on the WE or CE
inputs will not result in a write cycle.
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6
CAT28C16A
PACKAGE DIMENSIONS
PLCC 32
CASE 776AK−01
ISSUE O
PIN#1 IDENTIFICATION
E1
E
E2
D1
A2
D
A3
TOP VIEW
END VIEW
b1
b
e
D2
SIDE VIEW
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MS-016.
SYMBOL
MIN
A2
0.38
A3
2.54
2.80
7
MAX
b
0.33
0.54
b1
0.66
0.82
D
12.32
12.57
D1
11.36
11.50
D2
9.56
11.32
E
14.86
15.11
E1
13.90
14.04
E2
12.10
13.86
e
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NOM
1.27 BSC
CAT28C16A
PACKAGE DIMENSIONS
SOIC−24, 300 mils
CASE 751BK−01
ISSUE O
E1
SYMBOL
MIN
A
2.35
2.65
A1
0.10
0.30
A2
2.05
2.55
b
0.31
0.51
c
0.20
0.33
D
15.20
15.40
E
10.11
10.51
E1
7.34
7.60
E
e
b
e
PIN#1 IDENTIFICATION
NOM
MAX
1.27 BSC
h
0.25
0.75
L
0.40
1.27
θ
0º
8º
θ1
5º
15º
TOP VIEW
h
D
A2
A
A1
SIDE VIEW
h
q1
q
q1
L
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MS-013.
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8
c
CAT28C16A
PACKAGE DIMENSIONS
PDIP−24, 600 mils
CASE 646AD−01
ISSUE A
SYMBOL
MIN
NOM
A
E1 E
D
6.35
A1
0.39
A2
3.18
4.95
b
0.36
0.55
b1
0.77
1.77
c
0.21
0.38
D
31.50
32.25
E
15.24
15.87
E1
12.32
e
TOP VIEW
A2
14.73
2.54 BSC
eB
15.24
17.78
L
2.93
5.08
A
c
A1
b1
e
L
b
eB
SIDE VIEW
END VIEW
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MS-011.
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9
MAX
CAT28C16A
Example of Ordering Information
Prefix
Device #
Suffix
CAT
28C16A
N
Company ID
(Optional)
Product Number
28C16A
I
− 20
T
Temperature Range
Speed
Tape & Reel (Note 15)
T: Tape & Reel
Blank = Commercial (0°C to +70°C)
I = Industrial (−40°C to +85°C)
A = Automotive (−40°C to +105°C)
−90: 90 ns
−12: 120 ns
−20: 200 ns
Package
N: PLCC
J: SOIC (JEDEC)
K: SOIC (EIAJ)
L: PDIP (Lead Free, Halogen Free)
G: PLCC (Lead Free, Halogen Free)
W: SOIC (JEDEC) (Lead Free, Halogen Free)
X: SOIC (EIAJ) (Lead Free, Halogen Free)
14. The device used in the above example is a CAT28C16ANI−20T (PLCC, Industrial Temperature, 200 ns Access Time, Tape & Reel).
15. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
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PUBLICATION ORDERING INFORMATION
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10
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Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
CAT28C16A/D
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