PI74LPT244(1997) 데이터 시트보기 (PDF) - Pericom Semiconductor
부품명
상세내역
일치하는 목록
PI74LPT244 Datasheet PDF : 4 Pages
| |||
PI74LPT244
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345637.8390V12182-3B45I67T890B12U34F56F78E90R12/3L45I6N789E01D212R34I5V67E89R012
Power Supply Characteristics
Parameters Description
ICC
Quiescent Power Supply Current
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
ICCD
Dynamic Power Supply(4)
IC
Total Power Supply
Current(6)
Test Conditions(1)
VCC = Max.
VIN = GND or VCC
VCC = Max.
VIN = VCC – 0.6V(3)
VCC = Max.,
Outputs Open
OEX = GND
One Bit Toggling
50% Duty Cycle
VCC = Max.,
Outputs Open
fI = 10 MHZ
50% Duty Cycle
OEX = GND
One Bit Toggling
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
OEX = GND
8 Bits Toggling
VIN = VCC
VIN = GND
VIN = VCC – 0.6V
VIN = GND
VIN = VCC – 0.6V
VIN = GND
1
Min. Typ(2) Max. Units
0.1
10
µA 2
2.0 30 µA
50 75 µA/
MHz 3
4 0.6 2.3 mA
5
2.1 4.7(5)
6
7
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 3.3V, +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.
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 (fCP/2 + fINI)
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)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
NCP = Number of Clock Inputs at fCP
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
8
9
10
11
12
13
14
15
3
PS2058A 01/15/97
Share Link: 