Blockade
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Display
Type: raster Horizontal
Resolution: 256 x 224
Refresh: 60.11 Hz
Processors
Intel 8080A @ 2.079 MHz
Audio
Samples
Discrete Sound
Channels: 1
Controls
Players: 2
Coin slots: 1
joy, 4-way
joy, 4-way
Components (from manual)
8080A CPU · U19 · Main processor
2513 Memory · U2, U3 · Character ROM
7400 series Logic · Multiple · Various TTL logic gates throughout
2111 Memory · U6, U7 · RAM
7493 Logic · Multiple · Counter
7474 Logic · Multiple · Flip-flop
7404 Logic · Multiple · Hex inverter
7410 Logic · Multiple · Triple 3-input NAND gate
7420 Logic · Multiple · Dual 4-input NAND gate
7430 Logic · Multiple · 8-input NAND gate
7451 Logic · Multiple · AND-OR-INVERT gates
74154 Logic · Multiple · 4-to-16 line decoder
7408 Logic · Multiple · Quad 2-input AND gate
7402 Logic · Multiple · Quad 2-input NOR gate
6080-A CPU · U18 · Main processor
2102 Memory · Multiple locations · Static RAM chips
7400 Logic · Multiple locations · TTL logic gates
7404 Logic · Multiple locations · Hex inverters
7408 Logic · Multiple locations · Quad 2-input AND gates
7410 Logic · Multiple locations · Triple 3-input NAND gates
7420 Logic · Multiple locations · Dual 4-input NAND gates
7430 Logic · Multiple locations · 8-input NAND gate
7473 Logic · Multiple locations · Dual JK flip-flops
7474 Logic · Multiple locations · Dual D flip-flops
74123 Logic · Multiple locations · Dual monostable multivibrators
74153 Logic · Multiple locations · Dual 4-to-1 multiplexers
74200 Memory · U2, U3 · 256x4 static RAM
DM8864 Display · U4, U5 · Character generator ROM
2N4249 Transistor · Multiple locations · NPN transistors
PCBs (from manual)
Video Logic Board 807-0001B
Main video processing and logic board
Main video processing and logic board
Video Logic Board 807-00011D
Main game logic and video generation board
Main game logic and video generation board