IDT54FCT88915TT70L データシートの表示（PDF） - Integrated Device Technology

部品番号

コンポーネント説明

メーカー

IDT54FCT88915TT70L

LOW SKEW PLL-BASED CMOS CLOCK DRIVER (WITH 3-STATE)

Integrated Device Technology 

IDT54/74FCT88915TT 55/70/100/133

LOW SKEW PLL-BASED CMOS CLOCK DRIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS

Symbol

∆ICC

ICCD

CPD

IC

Parameter

Quiescent Power Supply Current

TTL Inputs HIGH

Dynamic Power Supply

Current(4)

Power Dissipation Capacitance

Total Power Supply Current(5,6)

Test Conditions(1)

VCC = Max.

VIN = VCC –2.1V(3)

VCC = Max.

All Outputs Open

VIN = VCC

VIN = GND

50% Duty Cycle

VCC = Max.

PLL_EN = 1, LOCK = 1, FEEDBACK = Q/2

SYNC frequency = 20MHz. Q/2 loaded with 50pF

All other outputs open

Min. Typ.(2) Max.

— 0.5 1.5

— 0.25 0.4

—

15

40

—

25

40

Unit

mA

mA/

MHz

pF

mA

VCC = Max.

PLL_EN = 1, LOCK = 1, FEEDBACK = Q/2

—

42

60 mA

SYNC frequency = 20MHz. Q/2 loaded with 50Ω

Thevenin termination. All other outputs open

NOTES:

3072 tbl 05

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics.

2. Typical values are at VCC = 5.0V, +25°C ambient.

3. Per TTL driven input; all other inputs at VCC or GND.

4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. It is derived with Q frequency as the reference.

5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (f) + ILOAD

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

∆ICC = Power Supply Current for a TTL High Input

DH = Duty Cycle for TTL Inputs High

NT = Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

f = 2Q frequency

ILOAD = Dynamic Current due to load.

SYNC INPUT TIMING REQUIREMENTS

Symbol

Parameter

Min.

Max. Unit

TRISE/FALL Rise/Fall Times,

—

3.0

ns

SYNC inputs

(0.8V to 2.0V)

Frequency Input Frequency,

10(1)

2Q fmax MHz

SYNC Inputs

Duty Cycle Input Duty Cycle,

25%

75%

—

SYNC Inputs

3053 tbl 06

OUTPUT FREQUENCY SPECIFICATIONS

Max.(2)

Symbol

f2Q

fQ

Parameter

Operating frequency 2Q Output

Operating frequency Q0-Q4, Q5 Outputs

Min.

55

40

55

70

100

133

Unit

70

100

133

MHz

20

27.5

35

50

66.7

MHz

fQ/2

Operating frequency Q/2 Output

10

13.75

17.5

25

33.3

MHz

NOTES:

3072 tbl 07

1. Note 8 in "General AC Specification Notes" and Figure 2 describes this specification and its actual limits depending on the feedback connection.

2. Maximum operating frequency is guaranteed with the part in a phase locked condition and all outputs loaded.

9.7

4

Share Link: