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參數(shù)資料
| 型號(hào)： | 935263050118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 總線收發(fā)器 |
| 英文描述： | 10 1-BIT DRIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | 4.40 MM, PLASTIC, MO-153AD, SOT-355-1, TSSOP-24 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 68K |
| 代理商： | 935263050118 |
Philips Semiconductors
Product specification
CBT3857
10-bit bus switch with 10 k
pull-down
termination resistors
2
1999 Sep 14
853–2168 22329
FEATURES
Enable signal is SSTL_2 compatible
Optimized for use in Double Data Rate (DDR) SDRAM
applications
Flow-through architecture optimizes PCB layout
Designed to be used with 200 Mbps
Switch on resistance is designed to eliminate the need for series
resistor to DDR SDRAM
Internal 10 k pull-down resistors on B port
Internal 50 k pull-up resistor on output enable input
Full DDR solution provided when used with SSTL16857 and
PCK857
Latch-up protection exceeds 500 mA per JESD78
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
DESCRIPTION
This 10-bit bus switch is designed for 3 V to 3.6 V VCC operation
and SSTL_2 output enable (OE) input levels.
When OE is LOW, the 10-bit bus switch is on and port A is
connected to port B. When OE is HIGH, the switch is open, and a
high-impedance state exists between the two ports.
The low on-state resistance of the switch allows connections to be
made with minimal propagation delay.
The CBT3857 is characterized for operation from 0
°C to +85°C.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0 V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Yn
CL = 30 pF; VCC = 3.3 V
720
ps
CIN
Input capacitance
VI = 0 V or VCC
2.8
pF
COUT
Output capacitance
Outputs disabled; VO = 0 V or VCC
6.4
pF
ICCZ
Total supply current
VCC = 3.6 V
1
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER CODE
DWG NUMBER
24-Pin Plastic TSSOP Type I
0
°C to +85°C
CBT3857 PW
SOT355–1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
VREF
Vcc
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
OE
SA00516
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1
VREF
Reference output voltage
2, 3, 4, 5, 6,
7, 8, 9, 10, 11
A1–A10
Inputs
12
GND
Ground (V)
22, 21, 20, 19, 18,
17, 16, 15, 14, 13
B1–B10
Outputs
23
OE
Output enable
24
VCC
Positive supply voltage
FUNCTION TABLE
INPUT
OE
FUNCTION
L
A port = B port
H
Disconnect
H = High voltage level
L
= Low voltage level
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