ATC25
器件资料摘要：
Cell-based ASIC
ATC25
Summary
Rev. 1306DS–CBIC–09/02
Features
• Comprehensive Library of Standard Logic Cells
ATC25 I/O Cells Designed to Operate with V
DD
= 2.5V ± 0.25V as Main Target Operating
Conditions
IO33 Pad Library Provides Interface to 3V Environment
Oscillators Provide Stable Clock Sources
Basic Analog Input/Output, Power, Ground and Multiplexer Cells Available,
High-performance Analog Cells Can Be Developed on Request
Memory Cells Compiled to the Precise Requirements of the Design
Compatible with Atmel’s Extensive Range of Microcontroller, DSP, Standard Interface
and Application Specific Cells
Description
The Atmel ATC25 CBIC family is fabricated on a proprietary 0.25 micron five-layer-
metal CMOS process intended for use with a supply voltage of 2.5V ± 0.25V. The fol-
lowing table shows the range for which Atmel library cells have been characterized.
The Atmel cell libraries and megacell compilers have been designed in order to be
compatible with each other. Simulation representations exist for three types of operat-
ing conditions; they correspond to three characterization conditions defined as follows:
MIN conditions:
T
J
=-40°C
V
DD
(cell) = 2.75V
Process = fast (industrial best case)
TYP conditions:
T
J
=+25°C
V
DD
(cell) = 2.5V
Process = typ (industrial typical case)
MAX conditions:
T
J
= +100°C
V
DD
(cell) = 2.25V
Process = slow (industrial worst case)
Delays to tri-state are defined as delay to turn off (VGS < VT) of the driving devices.
Output pad drain current corresponds to the output current of the pad when the output
voltage is V
OL
or V
OH
. The output resistor of the pad and the voltage drop due to
access resistors (in and out of the die) are taken into account. In order to have accu-
rate timing estimates, all characterization has been run on electrical netlists extracted
from the layout database.
Table 1. Recommended Operating Conditions
Symbol Parameter Conditions Min Typ Max Unit
V
DD
DC Supply Voltage Core and Standard I/Os 2.25 2.5 2.75 V
V
DD3
DC Supply Voltage 3V Interface I/Os 3 3.3 3.6 V
V
I
DC Input Voltage 0 V
DD
V
V
O
DC Output Voltage 0 V
DD
V
TEMP
Operating Free Air
Temperature Range
Industrial -40 +85 °C
1
ATC25
Summary
Rev. 1306DS–CBIC–09/02
Features
• Comprehensive Library of Standard Logic Cells
ATC25 I/O Cells Designed to Operate with V
DD
= 2.5V ± 0.25V as Main Target Operating
Conditions
IO33 Pad Library Provides Interface to 3V Environment
Oscillators Provide Stable Clock Sources
Basic Analog Input/Output, Power, Ground and Multiplexer Cells Available,
High-performance Analog Cells Can Be Developed on Request
Memory Cells Compiled to the Precise Requirements of the Design
Compatible with Atmel’s Extensive Range of Microcontroller, DSP, Standard Interface
and Application Specific Cells
Description
The Atmel ATC25 CBIC family is fabricated on a proprietary 0.25 micron five-layer-
metal CMOS process intended for use with a supply voltage of 2.5V ± 0.25V. The fol-
lowing table shows the range for which Atmel library cells have been characterized.
The Atmel cell libraries and megacell compilers have been designed in order to be
compatible with each other. Simulation representations exist for three types of operat-
ing conditions; they correspond to three characterization conditions defined as follows:
MIN conditions:
T
J
=-40°C
V
DD
(cell) = 2.75V
Process = fast (industrial best case)
TYP conditions:
T
J
=+25°C
V
DD
(cell) = 2.5V
Process = typ (industrial typical case)
MAX conditions:
T
J
= +100°C
V
DD
(cell) = 2.25V
Process = slow (industrial worst case)
Delays to tri-state are defined as delay to turn off (VGS < VT) of the driving devices.
Output pad drain current corresponds to the output current of the pad when the output
voltage is V
OL
or V
OH
. The output resistor of the pad and the voltage drop due to
access resistors (in and out of the die) are taken into account. In order to have accu-
rate timing estimates, all characterization has been run on electrical netlists extracted
from the layout database.
Table 1. Recommended Operating Conditions
Symbol Parameter Conditions Min Typ Max Unit
V
DD
DC Supply Voltage Core and Standard I/Os 2.25 2.5 2.75 V
V
DD3
DC Supply Voltage 3V Interface I/Os 3 3.3 3.6 V
V
I
DC Input Voltage 0 V
DD
V
V
O
DC Output Voltage 0 V
DD
V
TEMP
Operating Free Air
Temperature Range
Industrial -40 +85 °C
1