318

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The Sony/Tektronix 318 and its sister model 338 are keyboard-controlled multifunction portable logic analyzers.

The 318 has 16 channels with 50 MHz maximum clock speed and 256-word memory, with a glitch capture function on all channels. The standard probes are the P6451 (2 pieces) and P6107 (trigger/serial).

Model 318S1 adds an RS-232 interface, nonvolatile memory, and a serial state analysis function (5 to 9 bits/char, asynchronous or synchronous, two continuous word recognizers, 50 to 19.2K baud; binary, octal, decimal, hexadecimal, ASCII, or EBCDIC display).

Key Specifications

Probes	P6451 (8-channel) and P6107 (trigger/serial)
Channels	16 channels
Glitch detection	On Pod A and B (16 Channels)
Minimum logic swing	500 mVp-p
Maximum logic swing	–15 V to +10 V
Maximum input	±40 V non-destructive
Glitch data width	5 ns min
Clock source	Internal or external
Data setup time	13 ns min, 8 ns typ.
Data hold time	0 ns
Minimum clock period	20 ns
Memory	Reference Memory: 16 x 256 bits Aquisition Memory: 16 x 256 bits Glitch Memory: 16 x 256 bits
Features	Composite video out RS-232 (S1 model)

Internals

The 318 is based on a Zilog Z-80 microprocessor.

Pictures

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Parts

Some Parts Used in the 318

Part	Part Number(s)	Class	Description	Used in
155-0215-00	155-0215-00	Monolithic integrated circuit	logic analyzer input	318 • 338
Zilog Z-80	156-0983-03 • 156-0983-04	Monolithic integrated circuit	8-bit microprocessor	318 • 338 • 5223 • 834 • DAS9100 • SPG-271 • TSG-170