參數(shù)資料
型號: LFEC1E-4TN144I
廠商: Lattice Semiconductor Corporation
文件頁數(shù): 129/163頁
文件大小: 0K
描述: IC FPGA 1.5KLUTS 144TQFP
標(biāo)準(zhǔn)包裝: 60
系列: EC
邏輯元件/單元數(shù): 1500
RAM 位總計: 18432
輸入/輸出數(shù): 97
電源電壓: 1.14 V ~ 1.26 V
安裝類型: 表面貼裝
工作溫度: -40°C ~ 100°C
封裝/外殼: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-TQFP(20x20)
4-2
Pinout Information
LatticeECP/EC Family Data Sheet
TDI
I
Test Data in pin. Used to load data into device using 1149.1 state machine.
After power-up, this TAP port can be activated for configuration by sending
appropriate command. (Note: once a configuration port is selected it is
locked. Another configuration port cannot be selected until the power-up
sequence). Pull-up is enabled during configuration.
TDO
O
Output pin. Test Data out pin used to shift data out of device using 1149.1.
VCCJ
—VCCJ - The power supply pin for JTAG Test Access Port.
Configuration Pads (used during sysCONFIG)
CFG[2:0]
I
Mode pins used to specify configuration modes values latched on rising edge
of INITN. During configuration, a pull-up is enabled. These are dedicated
pins.
INITN
I/O
Open Drain pin. Indicates the FPGA is ready to be configured. During config-
uration, a pull-up is enabled. It is a dedicated pin.
PROGRAMN
I
Initiates configuration sequence when asserted low. This pin always has an
active pull-up. This is a dedicated pin.
DONE
I/O
Open Drain pin. Indicates that the configuration sequence is complete, and
the startup sequence is in progress. This is a dedicated pin.
CCLK
I/O
Configuration Clock for configuring an FPGA in sysCONFIG mode.
BUSY/SISPI
I/O
Read control command in SPI3 or SPIX mode.
CSN
I
sysCONFIG chip select (Active low). During configuration, a pull-up is
enabled.
CS1N
I
sysCONFIG chip select (Active low). During configuration, a pull-up is
enabled.
WRITEN
I
Write Data on Parallel port (Active low).
D[7:0]/SPID[0:7]
I/O
sysCONFIG Port Data I/O.
DOUT/CSON
O
Output for serial configuration data (rising edge of CCLK) when using sys-
CONFIG port.
DI/CSSPIN
I/O
Input for serial configuration data (clocked with CCLK) when using sysCON-
FIG port. During configuration, a pull-up is enabled. Output when used in
SPI/SPIX modes.
Signal Descriptions (Cont.)
Signal Name
I/O
Description
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