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Altera Corporation

Configuration Devices for SRAM-based LUT Devices Data Sheet

Notes to

Table 3:

(1)

Do not use EPC2 devices to configure FLEX 6000 devices.

(2)

Pin-out information for EPC8 and EPC16 configuration devices, please refer to each respective data sheet.

(3)

This package is available for EPC1 and EPC1441 devices only.

(4)

This package is available for EPC2 and EPC1441 devices only.

(5)

The OE, nCS, and nINIT_CONF pins on EPC2 devices have internal, user-configurable 1-k

Ω pull-up resistors. If

internal pull-up resistors are used, external pull-up resistors should not be used on these pins.

(6)

The EPC1441 device does not support data cascading. EPC2 and EPC1 devices support data cascading.

(7)

This pin applies to the EPC2 device only.

APEX II, APEX 20K, Merucry, ACEX 1K, FLEX 10K & FLEX 6000

Device Configuration with Multiple EPC2 or EPC1 Configuration

Devices

When configuration data for APEX II, APEX 20K, Mercury, ACEX 1K,

and FLEX devices exceeds the capacity of a single EPC2 or EPC1

configuration device, multiple EPC2 or EPC1 devices can be cascaded

together. If multiple EPC2 or EPC1 devices are required, the nCASC and

nCS

pins provide handshaking between the devices.

1

EPC8 and EPC16 configuration devices cannot be cascaded

together. The EPC1441 device does not support data cascading.

VCC

7, 8

20

27

Power

Power pin.

GND

5

10

12

Ground Ground pin. A 0.2-

µF decoupling capacitor must be

placed between the VCC and GND pins.

Table 3. EPC2, EPC1, & EPC1441 Pin Functions During APEX II, APEX 20K, Mercury, ACEX 1K, FLEX 10K

& FLEX 6000 Configuration (Part 3 of 3)

Pin Name

Pin Number

Pin

Type

Description

8-Pin

20-Pin

PLCC

32-Pin