ATF1504BE Просмотр технического описания (PDF) - Atmel Corporation

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ATF1504BE

High-performance CPLD

Atmel Corporation 

ATF1504BE

Table 8-4. DC Characteristics (Continued)

Symbol

Parameter

Condition

VIH

Input High-voltage

VOL

Output Low-voltage

VOH

Output High-voltage

LVCMOS 1.5V

HD: IOL = 2 mA, VCCIO = 1.7V

LD: IOL = 1 mA, VCCIO = 1.7V

HD: IOH = -2 mA, VCCIO = 1.7V

LD: IOH = -1 mA, VCCIO = 1.7V

VIL

VIH

VOL

VOH

Note:

Input Low-voltage

Input High-voltage

Output Low-voltage

HD: IOL = 2 mA, VCCIO = 1.4V

LD: IOL = 1 mA, VCCIO = 1.4V

Output High-voltage

HD: IOH = -2 mA, VCCIO = 1.4V

LD: IOH = -1 mA, VCCIO = 1.4V

1. 16-bit up/down counter used in each LAB.

Table 8-5. Schmitt Trigger Input Threshold Voltage

VCCINT

1.70

Min

0.68

VTHL

Max

0.73

1.95

0.81

0.88

Min

Typ

1.2

VCCIO - 0.45

VCCIO - 0.45

Max

3.9

0.45

0.2

Units

V

V

V

V

V

-0.3

1.2

VCCIO - 0.45

VCCIO - 0.45

0.35 x VCCIO

V

3.9

V

0.45

V

0.2

V

V

V

Min

1.05

1.18

VTLH

Max

1.08

1.22

Table 8-6. SSTL2-1 DC Voltage Specifications

Symbol

Parameter

Conditions

Min

Typ

VCCIO

Input Source Voltage

2.3

2.5

VREF(1)

Input Reference Voltage

1.15

1.25

VTT(2)

Termination Voltage

VREF - 0.05 1.25

VIH

Input High Voltage

VREF + 0.45

VIL

Input Low Voltage

-0.3

VOH

Output High Voltage

IOH = -8 mA, VCCIO = 2.3V

VCCIO - 0.6

VOL

Output Low Voltage

IOL = 8 mA, VCCIO = 2.3V

VIH(DC)

Input High Voltage

VREF + 0.15

VIL(DC)

Input Low Voltage

-0.3

Notes: 1. Peak-to-peak noise on VREF may not exceed ±2% VREF, VREF should track the variations in VCCIO.

2. VTT of transmitting device must track VREF of receiving devices.

Max

2.7

1.35

VREF + 0.04

3.9

VREF - 0.6

0.54

VCCIO + 0.3

VREF - 0.15

Units

V

V

V

V

V

V

V

V

V

17

3637B–PLD–1/08

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