Tiger Copy Cat Model# 7-522

Chip labeled 
MP3005N
MS8918
3313 PHILIPPINES

die labeled
MP3005

4 buttons: Green, Red, Orange, Yellow
4 LEDs
Piezo buzzer


TMS1730 pinout
1  K8   - green button
2  INIT - cap and diode
3  O7   - N/C
4  O6   - Piezo and 1K resistor to VDD
5  O4   - N/C
6  O2   - N/C
7  O0   - Piezo and 1K resistor to VDD
8  OSC1 - 47 pF cap to VSS and 100K resistor to VDD
9  OSC2 - OSC1
10 VSS  - batt +
11 R1   - orange LED
12 R2   - red LED
13 R3   - yellow LED
14 R4   - green LED
15 R5   - N/C
16 R7   - N/C
17 VDD  - batt - via switch
18 K1   - orange button
19 K2   - red button
20 K4   - yellow button


button matrix
           K1              K2             K4             K8
VSS   orange button    red button   yellow button   green button