參數(shù)資料
型號(hào): 100329QI
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Low Power Octal ECL/TTL Bidirectional Translator with Register
中文描述: TTL TO ECL TRANSCEIVER, TRUE OUTPUT, PQCC28
封裝: 0.450 X 0.450 INCH, PLASTIC, MO-047, LCC-28
文件頁(yè)數(shù): 8/11頁(yè)
文件大小: 242K
代理商: 100329QI
Test Circuitry
(ECL-to-TTL)
Switching Waveforms
(ECL-to-TTL)
DS100306-10
Note 18:
R
= 50
termination resistive load. When an input or output is being monitored by a scope, R
T
is supplied by the scope’s 50
input resistance. When
an input or output is not being monitored, an external 50
resistance must be applied to serve as R
T
.
Note 19:
The TTL TRI-STATE pull-up switch is connected to +7V only for ZL and LZ tests.
Note 20:
TTL and ECL force signals are brought to the DUT via 50
coax lines.
Note 21:
V
TTL
is decoupled to ground with 0.1 μF, V
EE
is decoupled to ground with 0.01 μF and V
CC
is connected to ground.
FIGURE 3. ECL-to-TTL AC Test Circuit
DS100306-11
Note:
DIR is LOW, OE is HIGH
FIGURE 4. ECL-to-TTL Transition— Propagation Delay and Transition Times
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