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参数资料
| 型号： | CY29FCT52TQSOP |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 8-Bit Registered Transceiver |
| 中文描述： | 8位注册收发器 |
| 文件页数： | 4/10页 |
| 文件大小： | 264K |
| 代理商： | CY29FCT52TQSOP |
CY29FCT52T
8-BIT REGISTERED TRANSCEIVER
SCCS010A
–
MAY 1994
–
REVISED OCTOBER 2001
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
VCC = 4.75 V,
IIN =
–
18 mA
IOH =
–
32 mA
IOH =
–
15 mA
IOL = 64 mA
–
0.7
–
1.2
V
VOH
VCC = 4.75 V
4 75 V
2
V
2.4
3.3
VOL
VH
II
IIH
IIL
IOS
Ioff
ICC
ICC
VCC = 4.75 V,
All inputs
0.3
0.55
V
0.2
V
μ
A
μ
A
μ
A
mA
VCC = 5.25 V,
VCC = 5.25 V,
VCC = 5.25 V,
VCC = 5.25 V,
VCC = 0 V,
VCC = 5.25 V, VIN
<
0.2 V, VIN
≥
VCC
–
0.2 V
VCC = 5.25 V, VIN = 3.4 V
§
, f1 = 0, Outputs open
VCC = 5.25 V, One input switching at 50% duty cycle, Outputs open,
OEA or OEB = GND, VIN
<
0.2 V or VIN
>
VCC
–
0.2 V
VIN = VCC
VIN = 2.7 V
VIN = 0.5 V
VOUT = 0 V
VOUT = 4.5 V
5
±
1
±
1
–
60
–
120
–
225
±
1
μ
A
0.1
0.2
mA
0.5
2
mA
ICCD
0.06
0.12
mA/
MHz
VCC= 5 25 V
VCC = 5.25 V,
f0 = 10 MHz,
Outputs open,
OEA or OEB = GND
One bit switching
at f1 = 5 MHz
at 50% duty cycle
VIN
<
0.2 V or
VIN
>
VCC
–
0.2 V
VIN = 3.4 V or GND
VIN
<
0.2 V or
VIN
>
VCC
–
0.2 V
VIN = 3.4 V or GND
0.7
1.4
1.2
3.4
mA
IC#
Eight bits switching
at f1 = 2.5 MHz
at 50% duty cycle
1.6
3.2||
3.9
12.2||
Ci
Co
5
10
pF
9
12
pF
Typical values are at VCC = 5 V, TA = 25
°
C.
Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or
sample-and-hold techniques are preferable to minimize internal chip heating and more accurately reflect operational values. Otherwise, prolonged
shorting of a high output can raise the chip temperature well above normal and cause invalid readings in other parametric tests. In any sequence
of parameter tests, IOS tests should be performed last.
§
Per TTL driven input (VIN = 3.4 V); all other inputs at VCC or GND
This parameter is derived for use in total power-supply calculations.
#IC
= ICC +
ICC
×
DH
×
NT + ICCD (f0/2 + f1
×
N1)
Where:
IC
= Total supply current
ICC
= Power-supply current with CMOS input levels
ICC = Power-supply current for a TTL high input (VIN = 3.4 V)
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)
f0
= Clock frequency for registered devices, otherwise zero
f1
= Input signal frequency
N1
= Number of inputs changing at f1
All currents are in milliamperes and all frequencies are in megahertz.
||Values for these conditions are examples of the ICC formula.
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