Search results
Results From The WOW.Com Content Network
Therefore, circuit simulators normally use more empirical models (often called compact models) that do not directly model the underlying physics. For example, inversion-layer mobility modeling , or the modeling of mobility and its dependence on physical parameters, ambient and operating conditions is an important topic both for TCAD (technology ...
An optional drum memory unit could provide up to 1.5 million characters of storage, and up to 63 magnetic tape units could be installed. [4] The tape drives utilized variable length records, whereby the "data on [the] tape [is] in proportion to the length of the data in each entry." [5] It weighed about 5,000 pounds (2.5 short tons; 2.3 t). [6]
Transistor models are used for almost all modern electronic design work. Analog circuit simulators such as SPICE use models to predict the behavior of a design. Most design work is related to integrated circuit designs which have a very large tooling cost, primarily for the photomasks used to create the devices, and there is a large economic incentive to get the design working without any ...
The tab is located 45° from pin 1, which is typically the emitter. The typical TO-5 package has a base diameter of 8.9 mm (0.35 in), a cap diameter of 8.1 mm (0.32 in), a cap height of 6.3 mm (0.25 in). [1] The pins are isolated from the package by individual glass-metal seals, or by a single resin potting.
5 1.2 10V (3-18) 1970 Approximately half speed and power at 5 volts TTL Original series 10 25 10 5 (4.75-5.25) 1964 Several manufacturers TTL L 33 3 1 5 (4.75-5.25) 1964 Low power TTL H 6 43 22 5 (4.75-5.25) 1964 High speed TTL S 3 100 19 5 (4.75-5.25) 1969 Schottky high speed TTL LS 10 40 2 5 (4.75-5.25) 1976 Low power Schottky high speed TTL ALS
The 6507 uses a 28-pin configuration, with 13 address pins (A0..A12) and 8 data pins (D0..D7). The seven remaining pins are used for power (Vss, Vcc), the CPU timing clock (φ0, φ2), to reset the CPU (the /RES pin), to request a CPU wait state during its next memory read access (the RDY pin), and for the CPU to indicate if a read or write memory (or MMIO device) access is being performed (the ...
The Ebers-Moll transistor model, and the theory of the p-n-p-n switch, came from this effort. Moll was the recipient of the Guggenheim Fellowship in 1964; Howard N. Potts Medal , Franklin Institute , 1967, and received the IEEE Edison Medal in 1991 "for pioneering contributions to diffused and oxide-masked silicon devices, transistor analysis ...
Stub Series Terminated Logic (SSTL) is a group of electrical standards for driving transmission lines commonly used with DRAM based DDR memory IC's and memory modules. SSTL is primarily designed for driving the DDR (double-data-rate) SDRAM modules used in computer memory; however, it is also used in other applications, notably some PCI Express PHYs and other high-speed devices.