ATMEL AT27C010-55TI, AT27C010-55TC, AT27C010-55PI, AT27C010-55PC, AT27C010-55JI Datasheet
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AT27C010/L
Description
The AT27C010/L 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.
Two power versions are offered. In read mode, the AT27C010 typically consumes 25
mA while the AT27C010L requires only 8 mA. Standby mode supply current for both
parts is typically less than 10
µA.
(continued)
Pin Configurations
Pin Name Function
A0 - A16 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable
PGM Program Strobe
NC No Connect
1 Megabit
(128K x 8)
OTP
CMOS EPROM
PDIP Top View
PLCC Top View
Features
•
Fast Read Access Ti me - 45 ns
•
Low Power CMOS Operation
100 µA max. Standby
25 mA max. Active at 5 MHz (AT27C010L)
35 mA max. Active at 5 MHz (AT27C010)
•
JEDEC Standard Packages
32-Lead 600-mil PDIP
32-Lead PLCC
32-Lead TSOP
•
5V ± 10% Supply
•
High Reliability CMOS Techn ol og y
2000V ESD Protection
200 mA Latchup Immunity
•
RapidProgramming Algorithm - 100 µs/byte (typical)
•
CMOS and TTL Compatible Inputs and Outputs
•
Integrated Product I de nti fic ation Code
•
Commercial and Industrial Temperature Ranges
TSOP Top View
Type 1
0321I
AT27C010/L
3-153
System Considerations
The AT27C010/L in available in a choice of industry standard JEDEC-approved one-time programmable (OTP)
plastic PDIP, PLCC, and TSOP packages. All devices feature two line control (
CE, OE) to give designers the flexibil-
ity to prevent bus contention.
With 128K byte storage capability, the AT27C010/L allows
firmware to be stored reliably and to be accessed by the
system without the delays of mass storage media.
Atmel’s 27C010/L have 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 pr oper programming algorithms and voltages.
Description (Continued)
Switching between active and standby conditions via the
Chip Enable pin ma y produce transient voltage excursions. Unless accommodated by the system design, these
transients may exceed data sheet 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
CC
and Ground terminals of
the device, as close to the device as possible. Additionally,
to stabilize th e 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
CC
and Ground terminals. This capacitor should be positioned as close as possible to the point where the power
supply is connected to the array.
3-154 AT27C010/L
Block Diagram
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
(1)
Voltage on A9 with
Respect to Ground ......................-2.0V to +14.0V
(1)
VPP Supply Voltage with
Respect to Ground.......................-2.0V to +14.0V
(1)
*NOTICE: Stresses beyond those listed under “Abso lu te Max i-
mum Ratings” may cause permanent da mage to th e de vi ce .
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.
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
CC
+ 0.75V dc wh ich may over-
shoot to +7.0V for pulses of less than 20 ns.
Absolute Maximum Ratings*
Operating Modes
Mode \ Pin
CE OE PGM Ai V
PP
Outputs
Read V
IL
V
IL
X
(1)
Ai X D
OUT
Output Disable X V
IH
X X X High Z
Standby V
IH
X X X X High Z
Rapid Program
(2)
V
IL
V
IH
V
IL
Ai V
PP
D
IN
PGM Verify V
IL
V
IL
V
IH
Ai V
PP
D
OUT
PGM Inhibit V
IH
XX X VPPHigh Z
Product Identification
(4)
V
IL
V
IL
X
A9 = V
H
(3)
A0 = VIH or VIL
A1 - A16 = V
IL
X
Identification
Code
Notes: 1. X can be VIL or VIH.
2. Refer to Programming characteristics.
3. V
H
= 12.0 ± 0.5V.
4. Two identifier by tes may be selec ted. All Ai in puts
are held low (V
IL
), except A9 which is set to VH and A0
which is toggled low (V
IL
) to select the Manufacturer’s Identi-
fication byte and high (V
IH
) to select the Dev ice Code byte.
AT27C010/L
3-155
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