EPC2TI32N Altera, EPC2TI32N Datasheet - Page 10

• Manufacturer Part Number: EPC2TI32N
• Description: IC CONFIG DEVICE 1.6MBIT 32-TQFP
• Manufacturer: Altera
• Series: EPCr

Specifications of EPC2TI32N

• Programmable Type: In System Programmable
• Memory Size: 1.6Mb
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 544-1648

4–10 Chapter 4: Configuration Devices for SRAM-Based LUT Devices Data Sheet
3.3-V or 5.0-V Operation
Configuration Handbook (Complete Two-Volume Set)
cycles after the last configuration bit was sent for CONF_DONE to reach a high state. In
this case, the configuration device pulls its OE pin low, which in turn drives the target
device’s nSTATUS pin low. Configuration automatically restarts if the Auto-restart
configuration on error option is turned on in the Quartus II software from the
General tab of the Device & Pin Options dialog box or the MAX+PLUS II software’s
Global Project Device Options dialog box (Assign menu).
In addition, if the FPGA detects a cyclical redundancy code (CRC) error in the
received data, it will flag the error by driving nSTATUS low. This low signal on
nSTATUS will drive the OE pin of the configuration device low, which will reset the
configuration device. CRC checking is performed when configuring all Altera FPGAs.
The EPC1, EPC2, and EPC 1441 configuration device may be powered at 3.3 V or
5.0 V. For each configuration device, an option must be set for 5.0-V or 3.3-V
operation.
For EPC1 and EPC1441 configuration devices, 3.3-V or 5.0-V operation is controlled
by a programming bit in the .pof. The Low-Voltage mode option in the Options tab of
the Configuration Device Options dialog box in the Quartus II software or the Use
Low-Voltage Configuration EPROM option in the Global Project Device Options
dialog box (Assign menu) in the MAX+PLUS II software sets this parameter. For
example, EPC1 devices are programmed automatically to operate in 3.3-V mode when
configuring FLEX 10KA devices, which have a V
the EPC1 device’s VCC pin is connected to a 3.3-V power supply.
For EPC2 devices, this option is set externally by the VCCSEL pin. In addition, the
EPC2 device has an externally controlled option, set by the VPPSEL pin, to adjust the
programming voltage to 5.0 V or 3.3 V. The functions of the VCCSEL and VPPSEL pins
are described below. These pins are only available in the EPC2 devices.
■
■
VCCSEL pin – For EPC2 configuration devices, 5.0-V or 3.3-V operation is
controlled by the VCCSEL option pin. The device functions in 5.0-V mode when
VCCSEL is connected to GND; the device functions in 3.3-V mode when VCCSEL is
connected to V
VPPSEL pin – The EPC2 V
EPC2 devices operating at 3.3 V, it is possible to improve in-system programming
times by setting V
to V
VPP pin. If the VPP pin is supplied by a 5.0-V supply, VPPSEL must be connected
to GND; if the VPP pin is supplied by a 3.3-V power supply, VPPSEL must be
connected to V
CC
. The EPC2 device’s VPPSEL pin must be set in accordance with the EPC2
CC
CC
.
.
PP
to 5.0 V. For all other configuration devices, V
PP
programming power pin is normally tied to V
CC
voltage of 3.3 V. In this example,
© December 2009
PP
Power and Operation
must be tied
Altera Corporation
CC
. For