ATMEL AT27C010 User Manual
BDTIC www.BDTIC.com/ATMEL
Features
• Fast Read Access Time – 45 ns
• Low-Power CMOS Operation
– 100 µA Max Standby
– 25 mA Max Active at 5 MHz
• JEDEC Standard Packages
– 32-lead PDIP
– 32-lead PLCC
– 32-lead TSOP
• 5V ± 10% Supply
• High Reliability CMOS Technology
– 2000V ESD Protection
– 200 mA Latchup Immunity
• Rapid Programming Algorithm – 100 µs/Byte (Typical)
• CMOS and TTL Compatible Inputs and Outputs
• Integrated Product Identification Code
• Industrial Temperature Range
• Green (Pb/Halide-free) Packaging Option
1-Megabit
(128K x 8)
OTP EPROM
AT27C010
1. Description
The AT27C010 is a low-power, high-performance 1,048,576-bit one-time programmable read-only memory (OTP EPROM) organized as 128K by 8 bits. They require only
one 5V power supply in normal read mode operation. Any byte can be accessed in
less than 45 ns, eliminating the need for speed reducing WAIT states on high-performance microprocessor systems.
In read mode, the AT27C010 typically consumes only 8 mA. Standby mode supply
current is typically less than 10 µA.
The AT27C010 is available in a choice of industry-standard JEDEC-approved onetime programmable (OTP) plastic PDIP, PLCC, and TSOP packages. All devices feature two line control (CE
contention.
With 128K byte storage capability, the AT27C010 allows firmware to be stored reliably
and to be accessed by the system without the delays of mass storage media.
Atmel’s AT27C010 has additional features to ensure high quality and efficient production use. The Rapid Programming Algorithm reduces the time required to program the
part and guarantees reliable programming. Programming time is typically only
100 µs/byte. The Integrated Product Identification Code electronically identifies the
device and manufacturer. This feature is used by industry-standard programming
equipment to select the proper programming algorithms and voltages.
, OE) to give designers the flexibility to prevent bus
0321M–EPROM–12/07
2. Pin Configurations
Pin Name Function
A0 - A16 Addresses
O0 - O7 Outputs
CE
OE
PGM
Chip Enable
Output Enable
Program Strobe
NC No Connect
2.1 32-lead PLCC Top View
A12
A15
A16
VPP
VCC
PGM
NC
A7
A6
A5
A4
A3
A2
A1
A0
O0
432
5
6
7
8
9
10
11
12
13
14151617181920
O1
O2
1
O3O4O5
GND
323130
29
28
27
26
25
24
23
22
21
O6
A14
A13
A8
A9
A11
OE
A10
CE
O7
2.3 32-lead TSOP (Type 1) Top View
1
A11
A9
A8
A13
A14
NC
PGM
VCC
VPP
A16
A15
A12
A7
A6
A5
A4
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE
O7
O6
O5
O4
O3
GND
O2
O1
O0
A0
A1
A2
A3
2.2 32-lead PDIP Top View
1
VPP
2
A16
3
A15
4
A12
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
13
O0
14
O1
15
O2
16
GND
2
AT27C010
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
PGM
NC
A14
A13
A8
A9
A11
OE
A10
CE
O7
O6
O5
O4
O3
0321M–EPROM–12/07
3. System Considerations
Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may
exceed datasheet limits, resulting in device non-conformance. At a minimum, a 0.1 µF high
frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This
capacitor should be connected between the V
to the device as possible. Additionally, to stabilize the supply voltage level on printed circuit
boards with large EPROM arrays, a 4.7 µF bulk electrolytic capacitor should be utilized, again
connected between the V
close as possible to the point where the power supply is connected to the array.
4. Block Diagram
AT27C010
and Ground terminals of the device, as close
CC
and Ground terminals. This capacitor should be positioned as
CC
5. Absolute Maximum Ratings*
Temperature Under Bias................................ -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V
Voltage on A9 with
Respect to Ground ......................................-2.0V to +14.0V
VPP Supply Voltage with
Respect to Ground .......................................-2.0V to +14.0V
Note: 1. Minimum voltage is -0.6V DC which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is
V
+ 0.75V DC which may overshoot to +7.0 volts for pulses of less than 20 ns.
CC
(1)
(1)
(1)
*NOTICE: Stresses beyond those listed under “Absolute Max-
imum 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.
0321M–EPROM–12/07
3
6. Operating Modes
Mode/Pin CE OE PGM Ai V
Read V
IL
Output Disable X V
Standby V
Rapid Program
(2)
PGM Verify V
PGM Inhibit V
Product Identification
(4)
IH
V
IL
IL
IH
V
IL
V
IL
IH
X X X X High Z
V
IH
V
IL
XX X VPPHigh Z
V
IL
(1)
X
Ai X D
X X X High Z
V
IL
V
IH
X
Ai V
Ai V
A9 = V
(3)
H
A0 = VIH or VIL
A1 - A16 = V
IL
PP
PP
PP
X Identification Code
Note: 1. X can be VIL or VIH.
2. Refer to Programming Characteristics.
3. V
= 12.0 ± 0.5V.
H
4. Two identifier bytes may be selected. All Ai inputs are held low (V
), except A9 which is set to VH and A0 which is toggled
IL
low (VIL) to select the Manufacturer’s Identification byte and high (VIH) to select the Device Code byte.
7. DC and AC Operating Conditions for Read Operation
AT27C010
-45 -70
Operating Temp. (Case) Ind. -40° C - 85° C-40° C - 85° C
Outputs
OUT
D
IN
D
OUT
Power Supply 5V ± 10% 5V ± 10%
V
CC
8. DC and Operating Characteristics for Read Operation
Symbol Parameter Condition
I
LI
I
LO
IPP1
I
SB
I
CC
V
IL
V
IH
V
OL
V
OH
Note: 1. V
Input Load Current VIN = 0V to V
Output Leakage Current V
(2)
(1))
V
Read/Standby Current VPP = V
PP
(1)
V
Standby Current
CC
= 0V to V
OUT
(CMOS), CE = V
I
SB1
I
(TTL), CE = 2.0 to VCC + 0.5V 1 mA
SB2
VCC Active Current f = 5 MHz, I
Input Low Voltage -0.6 0.8 V
Input High Voltage 2.0 V
Output Low Voltage IOL = 2.1 mA 0.4 V
Output High Voltage I
must be applied simultaneously or before VPP, and removed simultaneously or after VPP.
CC
2. V
may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and IPP.
PP
= -400 µA 2.4 V
OH
CC
CC
OUT
CC
± 0.3V 100 µA
CC
= 0 mA, CE = V
Ind. ± 1µA
Ind. ± 5µA
IL
Min Max Units
10 µA
25 mA
+ 0.5 V
CC
4
AT27C010
0321M–EPROM–12/07
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