81C51SL
Intel
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Keyboard controller. Table 1 Pin Descriptions Symbol Type Description VSS Circuit ground potential VCC Supply voltage during normal Idle and Power-D
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81C55 - Radiation Hardened 256 x 8 CMOS RAM
(Intersil Corporation)
HS-81C55RH, HS-81C56RH
March 1996
Radiation Hardened 256 x 8 CMOS RAM
Description
The HS-81C55/56RH are radiation hardened RAM and I/O chips fabricat.
81C55 - 2048-Bit CMOS STATIC RAM
(OKI electronic componets)
E2O0014-27-X2
¡ Semiconductor MSM81C55-5RS/GS/JS
¡ Semiconductor 2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER
This version: Jan. 1998 MSM81C55-.
81C56 - Radiation Hardened 256 x 8 CMOS RAM
(Intersil Corporation)
HS-81C55RH, HS-81C56RH
March 1996
Radiation Hardened 256 x 8 CMOS RAM
Description
The HS-81C55/56RH are radiation hardened RAM and I/O chips fabricat.
81C17 - TWENTY PIN UART
(SMSC Corporation)
.
81C27Q - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.
81C30P - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.
81C30Q - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.
81C30R - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.
81C33Q - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.
81C44Q - VOLTAGE DETECTORS
(UTC)
UNISONIC TECHNOLOGIES CO., LTD 81CXX/81NXX
VOLTAGE DETECTORS WITH BUILT-IN DELAY TIME
CMOS IC
DESCRIPTION
The UTC 81CXX and 81NXX series are good.