MTP805

Features:

· 8051 core, 6MHz operating frequency.
· 256-byte RAM, 8K-byte program Flash-ROM.
· Compliant with Low Speed USB Spec.1.1 including 3 Endpoints: one is Control endpoint (8-byte IN & 8- byte OUT FIFOs), the other two are Interrupt endpoints (8-byte IN FIFOs).
· Built-in 3.3V regulator for USB Interface.
· Suspend / Resume operation.
· Idle and Power down mode wake-up by interrupt.
· 8 dedicated Key scan input pins and 18/19 Key scan output pins.
· Built-in low power reset circuit and Watchdog timer.
· PS2 compatible mouse interface.
· PS2 compatible keyboard interface share with USB interface.
· CPU clock can be double by S/W setting.
· 40-pin DIP, 42-pin SDIP or 44-pin PLCC package.


Pinout




Specifications

1. Absolute Maximum Ratings
at: Ta= 0 to 70 oC, VSS=0V

Name	Symbol	Range	Unit
Maximum Supply Voltage	VDD	-0.3 to +6.0	V
Maximum Input Voltage	Vin	-0.3 to VDD+0.3	V
Maximum Output Voltage	Vout	-0.3 to VDD+0.3	V
Maximum Operating Temperature	Topg	0 to +70	°C
Maximum Storage Temperature	Tstg	-25 to +125	°C

2. Allowable Operating Conditions
at: Ta= 0 to 70 oC, VSS=0V

Name	Symbol	Min.	Max.	Unit
Supply Voltage	VDD	4.5	5.5	V
Input "H" Voltage	Vih1	0.7 x VDD	VDD +0.3	V
Input "L" Voltage	Vil1	-0.3	0.15 x VDD	V
Operating Freq.	Fosc	6	6	MHz

3. DC Characteristics
at: Ta= 25 oC, VSS=0V, VDD=5V, Fosc=6MHz

Name	Symbol	Min.	Max.	Unit
Active current	Icc		6	mA
Power Down current	Ipd		20	uA
Output High Voltage @ Ioh=-100u	Voh	4.0		V
Output Low Voltage @ Iol=4mA	Vol		0.45	V
LED sink current @ Vol=3.2V	Iled	6.2		mA
RST pin pull down resistor	Rrst	50	150	Kohm
KSI pin pull up resistor	Rksi	50	100	Kohm
V33 output voltage	V33	3.2	3.4	V

4. AC Characteristics
at: Ta= 25 oC, VSS=0V, VDD=5V, Fosc=6MHz

Name	Symbol	Min.	Max.	Unit
DP/DM rise time	Trise	75	300	ns
DP/DM fall time	Tfall	75	300	ns
DP,DM cross point	Vx	1.3	2.0	V

* note: all USB transceiver characteristic can meet USB 1.1 spec


Description

The MTP805 micro-controller is an 8051 CPU core embedded device specially tailored to USB/PS2 Keyboard/Mouse applications. It includes an 8051 CPU core, 256-byte SRAM, Low Speed USB Interface and an 8K-byte internal program Flash-ROM.