參數(shù)資料
型號: 74ABT657DB,112
廠商: NXP Semiconductors
文件頁數(shù): 16/17頁
文件大?。?/td> 0K
描述: IC TRANSCVR TRI-ST 8BIT 24SSOP
產(chǎn)品培訓模塊: Logic Packages
標準包裝: 59
系列: 74ABT
邏輯類型: 收發(fā)器,非反相
元件數(shù): 1
每個元件的位元數(shù): 8
輸出電流高,低: 32mA,64mA
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-SSOP(0.209",5.30mm 寬)
供應商設備封裝: 24-SSOP
包裝: 管件
其它名稱: 74ABT657DB
74ABT657DB-ND
935069180112
74ABT657_3
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 15 March 2010
8 of 17
NXP Semiconductors
74ABT657
Octal transceiver with parity generator/checker; 3-state
10. Dynamic characteristics
[1]
These delay times reect the 3-state recovery time only and do not include the delay through the buffers and the parity check circuitry
which affect the ERROR output. To ensure valid information at the ERROR pin, time must be allowed for the signal to propagate
through the drivers (B to A), through the parity check circuitry (same as A to PARITY), and to the ERROR output. Valid data at the
ERROR pin
≥ (B to A) + (A to PARITY).
Table 7.
Dynamic characteristics
GND = 0 V; for test circuit, see Figure 9.
Symbol Parameter
Conditions
25
°C; V
CC = 5.0 V
40 °C to +85 °C;
VCC = 5.0 V ± 0.5 V
Unit
Min
Typ
Max
Min
Max
tPLH
LOW to HIGH
propagation delay
An to Bn or Bn to An; see Figure 6
1.1
2.5
4.1
1.1
4.6
ns
An to PARITY; see Figure 5 and 6
2.5
5.1
6.7
2.5
8.1
ns
ODD/EVEN to PARITY and ERROR;
see Figure 5 and 6
1.7
3.5
4.6
1.7
5.3
ns
Bn to ERROR; see Figure 5 and 6
3.9
7.3
10.2
3.9
12.3
ns
PARITY to ERROR; see Figure 5 and 6
2.7
4.5
5.9
2.7
7.7
ns
tPHL
HIGH to LOW
propagation delay
An to Bn or Bn to An; see Figure 6
1.2
3.0
3.9
1.2
4.3
ns
An to PARITY; see Figure 5 and 6
2.8
5.0
7.4
2.8
8.9
ns
ODD/EVEN to PARITY and ERROR;
see Figure 5 and 6
1.9
3.7
5.1
1.9
5.8
ns
Bn to ERROR; see Figure 5 and 6
4.0
7.9
10.5
4.0
12.9
ns
PARITY to ERROR; see Figure 5 and 6
3.2
5.2
6.7
3.2
8.1
ns
tPZH
OFF-state to HIGH
propagation delay
see Figure 7 and 8
1.3
3.6
5.5
1.3
6.5
ns
tPZL
OFF-state to LOW
propagation delay
see Figure 7 and 8
1.9
4.2
5.3
1.9
6.5
ns
tPHZ
HIGH to OFF-state
propagation delay
see Figure 7 and 8
2.4
3.6
5.6
2.4
6.2
ns
tPLZ
LOW to OFF-state
propagation delay
see Figure 7 and 8
2.2
3.4
7.3
2.2
7.8
ns
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74ABT657DB-T 功能描述:總線收發(fā)器 OCTAL XCVR W/PARITY CHK 3-S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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74ABT657PW 功能描述:總線收發(fā)器 OCTAL XCVR W/PARITY CHK 3-S RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
74ABT657PW,112 功能描述:總線收發(fā)器 OCTAL XCVR RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel
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