參數(shù)資料
型號(hào)： SN74AVC20T245GQLR
廠商： Texas Instruments, Inc.
英文描述： 20 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
中文描述： 20位雙電源總線收發(fā)器可配置電壓轉(zhuǎn)換和三態(tài)輸出
文件頁(yè)數(shù)： 13/19頁(yè)
文件大小： 436K
代理商： SN74AVC20T245GQLR
SCES566F MAY 2004 REVISED APRIL 2005
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VOH
VOL
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
S1
2
×
VCCO
Open
GND
RL
RL
tPLH
tPHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
×
VCCO
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
VCCA/2
VCCA/2
VCCI/2
VCCI/2
VCCI
0 V
VCCO/2
VCCO/2
VOH
VOL
0 V
VCCO/2
VOL + VTP
VCCO/2
VOH VTP
0 V
VCCI
0 V
VCCI/2
VCCI/2
tw
Input
VCCA
VCCO
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Output
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2
×
VCCO
GND
TEST
S1
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. VCCI is the VCC associated with the input port.
I. VCCO is the VCC associated with the output port.
10 MHz, ZO = 50
, dv/dt
≥
1 V/ns.
1.2 V
1.5 V
±
0.1 V
1.8 V
±
0.15 V
2.5 V
±
0.2 V
3.3 V
±
0.3 V
2 k
2 k
2 k
2 k
2 k
VCCO
RL
0.1 V
0.1 V
0.15 V
0.15 V
0.3 V
VTP
CL
15 pF
15 pF
15 pF
15 pF
15 pF
Figure 11. Load Circuit and Voltage Waveforms
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SN74AVC2T244DQMR 功能描述:轉(zhuǎn)換 - 電壓電平 DUAL BIT DUAL-SUPPLY BUS TRANSCEIVER RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
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