參數(shù)資料
型號: 74AVC16835ADGV,118
廠商: NXP Semiconductors
文件頁數(shù): 11/12頁
文件大?。?/td> 0K
描述: IC RGSTRD DVR 3-ST 18BIT 56TVSOP
產(chǎn)品培訓(xùn)模塊: Logic Packages
標(biāo)準(zhǔn)包裝: 2,500
系列: 74AVC
邏輯類型: 緩沖器/線路驅(qū)動器,非反相
元件數(shù): 1
每個(gè)元件的位元數(shù): 18
輸出電流高,低: 12mA,12mA
電源電壓: 1.2 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-TFSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 56-TSSOP
包裝: 帶卷 (TR)
其它名稱: 74AVC16835ADGV-T
74AVC16835ADGV-T-ND
935271488118
Philips Semiconductors
Product data
74AVC16835A
18-bit registered driver with
Dynamic Controlled Outputs
(3-State)
2002 Mar 15
8
TEST CIRCUIT
SWITCH POSITION
PULSE
GENERATOR
RT
VI
D.U.T.
VO
CL
VCC
RL
Test Circuit for switching times
Open
GND
S1
DEFINITIONS
VCC
VI
< 2.3 V
VCC
TEST
S1
tPLH/tPHL
Open
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT of pulse generators.
2
< VCC
tPLZ/tPZL
VCC
2.3–2.7 V
tPHZ/tPZH
GND
RL
2 * VCC
SV01018
RL
1000
500
VCC
3.0 V
500
Figure 1. Load circuitry for switching times
GRAPHS
SH00204
0
0.5
1
1.5
2
2.5
3
3.5
0
50
100
150
200
250
OUTPUT CURRENT (mA)
OUTPUT
VOL
T
AGE
(V)
= 3.3 V
V
OL
VCC
= 2.5 V
VCC
VCC = 1.8 V
I OL
Figure 2. Output voltage (VOL) vs. output current (IOL)
SH00205
–250
–200
–150
–100
–50
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
= 3.3 V
= 2.5 V
= 1.8 V
OUTPUT CURRENT (mA)
OUTPUT
VOL
T
AGE
(V)
V
OH
VCC
I OH
VCC
Figure 3. Output voltage (VOH) vs. output current (IOH)
A Dynamic Controlled Output (DCO) circuit is designed in. During
the transition, it initially lowers the output impedance to effectively
drive the load and, subsequently, raises the impedance to reduce
noise. Figures 2 and 3 show VOL vs. IOL and VOH vs. IOH curves to
illustrate the output impedance and drive capability of the circuit. At
the beginning of the signal transition, the DCO circuit provides a
maximum dynamic drive that is equivalent to a high drive standard
output device.
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