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Part Numbert	Mfg	Packt	D/C	Descriptiont	Qty	Company/Contact
PAL20R87CNT	TI		08+	in Stock	185	Jiujiang Ying Shuo Technology .. Contact:nie Tel:86-792-4213878 Fax: Email: yuruo_001@163.com

PAL20R87CNT Datasheet

SYMBOL	PARAMETER	MAX	MAX	MAX	UNIT
VDRM, VRRM	BT151U- Repetitive peak off-state voltages Average on-state current RMS on-state current Non-repetitive peak on-state current	500C 500 7.5 12 100	650C 650 7.5 12 100	800C 800 7.5 12 100	V A A A

PAL20R87CNT Price

Because of on-chip Flash EPROM, when a program is running in internal ROM space, the ALE will be unused. The transition of ALE will cause noise, so it can be turned off to reduce the EMI emission if it is useless. Turning off the ALE signal transition only requires setting the bit o of the AUXR SFR, which is located at 08Eh. When ALE is turned off, it will be reactivated when the program accesses external ROM/RAM data or jumps to execute an external ROM code. The ALE signal will turn off again after it has been completely accessed or the program returns to internal ROM code space. The AO bit in the AUXR register, when set, disables the ALE output. In order to reduce EMI emission from oscillation circuitry, W781E52 allows user to diminish the gain of on-chip oscillator amplifiers by using programmer to clear the B7 bit of security register. Once B7 is set t0 0, a half of gain will be decreased. Care must be taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may affect the external crystal operating improperly at high frequency above 24 MHz. The value of R and Cl, C2 may need some adjustment while running at lower gain.
PAL20R87CNT on stock

Parameter	Symbol	Conditions	Min Typ'Max	Units
DC CHARACTERISTICS RHEOSTAT I Resistor Differential NL2 Resistor Nonlinearity Error2 Nominal Resistor Tolerance3 Resistance Temperature Coefficient Wiper Resistance Nominal Resistance Match	\iIODE Spec R-DNL R-INL kB kB/CT Rw CJRIRO	fications Apply to All VRs RWB, VA = No Connect RWB, VA = No Connect VAB = VDD, Wiper = No Connect IW = 1 V/RAB CH l to CH 2,VAB = VDD , TA = +25IC	-0.25 +0.1 +0.25 -0.5 +0.1 +0.5 -30 +30 700 45 100 0.2 1	LSB LSB % ppm/YC I %
DC CHARACTERISTICS POTENTIOM Resolution Differential Nonlinearity Error4 Integral Nonlinearity Error4 Voltage Divider Temperature Coefficient Full-Scale Error Zero-Scale Error	ETER DIVI1 N DNL INL ovWicrr VWFSE VWZSE	)ER MODE Specifications Apply to All VRs Code = 20H Code = 3FH Code = OOH	6 -0.25 +0.1 +0.25 -0.75 +0.1 +0.75 20 -0.75 -0.2 0 0 +0.1 +0.75	Bits LSB LSB ppm/YC LSB LSB
RESISTOR TERMINALS Voltage Range5 Capacitance6 Ax, Bx Capacitance6 Wx Shutdown Supply Currenti Shutdown Wiper Resistance	VA, VB, VW CA, CB CW IA_SD RW_SD	f = 1 MHz, Measured to GND, Code = 20H f = 1 MHz, Measured to GND, Code = 20H VA = VDD, VB = O V, SHDN = 0 VA = VDD, VB = O V, SHDN = 0, VDD = +5 V	0 VDD 75 120 0.01 5 45 100	V pF pF l
DIGITAL INPUTS AND OUTPUTS Input Logic High Input Logic Low Input Logic High Input Logic Low Output Logic High Output Logic Low Input Current Input Capacitance6	VIH VIL VIH VIL VOH VOL IIL CIL	VDD = +5 V VDD = +5 V VDD = +3 V VDD = +3 V RL = 2.2 kl to VDD IOL = 1.6 mA, VDD = +5 V VIN = O V or +5 V, VDD = +5 V	2.4 0.8 2.1 0.6 VDD-O.1 0.4 +1 5	V V V V V V pF
POWER SUPPLIES Power Supply Range Supply Current (CMOS) Supply Current (TTL)8 Power Dissipation (CMOS)9 Power Supply Sensitivity	VDD Range IDD IDD PDISS PSS PSS	VIH = VDD or VIL = O V VIH = 2.4 V or VIL = 0.8 V) VDD = +5.5 V VIH = VDD or VIL = O V, VDD = +5.5 V OVDD = +5 V+ 10% C7VDD = +3 V + 10%	2.7 5.5 0.01 5 0.9 4 27.5 0.0002 0.001 0.006 0.03	V mA ccW %/% %/%
DYNAMIC CHARACTERISTICS6,10 Bandwidth -3 dB Total Harmonic Distortion Vw Settling Time Resistor Noise Voltage Crosstalk"	BW_10K BW_100K THDw ts_lOK tS_lOOK eNWB CT	RAB = 10 kl RAB = 100 kl VA =1 V rms + 2 V dc, VB = 2 V dc, f= 1 kHz VA = VDDi VB = O V! +1 LSB Error Band VA = VDDi VB = O V} +1 LSB Error Band RWB = 5 kl, f = 1 kHz, RS = 0 RWB = 50 kl , f= 1 kHz, RS = 0 VA = VDDi VB = O V	600 71 0.003 2 18 9 29 -65	kHz kHz % nV/SdTz nV/Sd-Iz dB
INTERFACE TIMING CHARACTERISr Input Clock Pulsewidth Data Setup Time Data Hold Time CLK to SDO Propagation Delay13 CS Setup Time CS High Pulsewidth Reset Pulsewidth CLK FalI to CS Rise Hold Time CS Rise to Clock Rise Setup	FICS Applies tCH} tCL tDS tDH tPD tcSs tcSW tRS tCSH tcSl	to All Parts6' i2 Clock Level High or Low RL = 2.2 kl, CL < 20 pF	10 5 5 1 25 10 10 50 0 10	ns ns ns ns ns ns ns ns ns

involves issuing the start condition followed by the slave address for a write operation. If the X2404 is still busy with the write operation no ACK will be returned. If the X2404 has completed the write operation an ACK will be returned and the host can then proceed with the next read or write operation.

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