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參數(shù)資料
| 型號： | IDT74FCT621ATEB |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN) |
| 中文描述： | 快速CMOS八路總線收發(fā)器（開漏） |
| 文件頁數(shù)： | 4/6頁 |
| 文件大小： | 67K |
| 代理商： | IDT74FCT621ATEB |
IDT54/74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.18
4
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
I
CC
Quiescent Power Supply Current
TTL Inputs HIGH
I
CCD
Dynamic Power Supply Current
(4)
Test Conditions
(1)
Min.
—
Typ.
(2)
0.5
Max.
2.0
Unit
mA
V
CC
= Max.
V
IN
= 3.4V
(3)
Vcc = Max.
Outputs Open
G
BA = GAB = GND or V
CC
One Input Toggling
50% Duty Cycle
Vcc = Max.
Outputs Open
G
BA = GAB = GND or V
CC
One Bit Toggling
at f
i
=10MHz
50% Duty Cycle
Vcc = Max.
Outputs Open
G
BA = GAB = GND or V
CC
Eight Bits Toggling
at f
i
= 2.5MHz
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
—
0.15
0.25
mA/MHz
I
C
Total Power Supply Current
(6,7)
V
IN
= V
CC
V
IN
= GND
—
1.5
3.5
mA
V
IN
= 3.4V
V
IN
= GND
—
1.8
4.5
V
IN
= V
CC
V
IN
= GND
—
3.0
6.0
(5)
V
IN
= 3.4V
V
IN
= GND
—
5.0
14.0
(5)
NOTES:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25
°
C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at V
CC
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 I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
i
N
i
)
I
CC
= Quiescent Current
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Output Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
All currents are in milliamps and all frequencies are in megahertz.
7. This test is performed with outputs tied to GND through a pull-down resistor.
2538 tbl 06
IDT54/74FCT621T
Com’l.
Min.
(2)
Max.
IDT54/74FCT621AT
Com’l.
Min.
(2)
Max. Min.
(2)
Mil.
Mil.
Symbol
Parameter
Condition
(1)
Min.
(2)
Max.
Max.
Unit
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation Delay A to B
C
L
= 50pF
R
L
= 500
5.5
1.5
5.5
1.5
5.5
1.5
5.5
1.5
13.0
8.5
12.5
8.0
14.0
8.5
14.0
8.0
5.5
1.5
5.5
1.5
5.5
1.5
5.5
1.5
13.5
9.5
13.0
9.0
14.5
9.5
14.5
9.0
5.5
1.5
5.5
1.5
5.5
1.5
5.5
1.5
12.0
6.8
12.0
6.4
13.0
6.8
13.0
6.4
5.5
1.5
5.5
1.5
5.5
1.5
5.5
1.5
12.5
7.6
12.5
7.2
13.5
7.6
13.5
7.2
ns
Propagation Delay B to A
ns
Propagation Delay
G
BA to A
ns
Propagation Delay GAB to B
ns
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
2538 tbl 07
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IDT74FCT621ATSOG | 功能描述:IC BUS TRANSCVR 8B N-INV 20SOIC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標(biāo)準(zhǔn)包裝:47 系列:74LVX 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):4 每個(gè)元件的位元數(shù):1 輸出電流高，低:4mA，4mA 電源電壓:2 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 |
| IDT74FCT621ATSOG8 | 功能描述:IC BUS TRANSCVR 8B N-INV 20SOIC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標(biāo)準(zhǔn)包裝:2,000 系列:74LVCH 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):2 每個(gè)元件的位元數(shù):4 輸出電流高，低:24mA，24mA 電源電壓:1.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:20-SOIC 包裝:帶卷 (TR) |
| IDT74FCT621TSOG | 功能描述:IC BUS TRANSCVR 8B N-INV 20SOIC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標(biāo)準(zhǔn)包裝:47 系列:74LVX 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):4 每個(gè)元件的位元數(shù):1 輸出電流高，低:4mA，4mA 電源電壓:2 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 |
| IDT74FCT621TSOG8 | 功能描述:IC BUS TRANSCVR 8B N-INV 20SOIC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動器，接收器，收發(fā)器 系列:74FCT 標(biāo)準(zhǔn)包裝:47 系列:74LVX 邏輯類型:緩沖器/線路驅(qū)動器，非反相 元件數(shù):4 每個(gè)元件的位元數(shù):1 輸出電流高，低:4mA，4mA 電源電壓:2 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 |
| IDT74FCT623KTSO | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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