CY8C9520A_10 CYPRESS [Cypress Semiconductor], CY8C9520A_10 Datasheet - Page 26

• Manufacturer Part Number: CY8C9520A_10
• Description: 20, 40, and 60 Bit I/O Expander with EEPROM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Glossary
Document Number: 38-12036 Rev. *E
active high
analog blocks
analog-to-digital
(ADC)
Application
programming
interface (API)
asynchronous
bandgap
reference
bandwidth
bias
block
buffer
bus
clock
comparator
The basic programmable opamp circuits. These are SC (switched capacitor) and CT (continuous
time) blocks. These blocks can be interconnected to provide ADCs, DACs, multi-pole filters, gain
stages, and much more.
A device that changes an analog signal to a digital signal of corresponding magnitude. Typically,
an ADC converts a voltage to a digital number. The digital-to-analog (DAC) converter performs
the reverse operation.
A series of software routines that comprise an interface between a computer application and
lower level services and functions (for example, user modules and libraries). APIs serve as
building blocks for programmers that create software applications.
A signal whose data is acknowledged or acted upon immediately, irrespective of any clock signal.
A stable voltage reference design that matches the positive temperature coefficient of VT with
the negative temperature coefficient of VBE, to produce a zero temperature coefficient (ideally)
reference.
The device that generates a periodic signal with a fixed frequency and duty cycle. A clock is
sometimes used to synchronize different logic blocks.
An electronic circuit that produces an output voltage or current whenever two input levels simultaneously
satisfy predetermined amplitude requirements.
1. A logic signal having its asserted state as the logic 1 state.
2. A logic signal having the logic 1 state as the higher voltage of the two states.
1. The frequency range of a message or information processing system measured in hertz.
2. The width of the spectral region over which an amplifier (or absorber) has substantial gain (or
1. A systematic deviation of a value from a reference value.
2. The amount by which the average of a set of values departs from a reference value.
3. The electrical, mechanical, magnetic, or other force (field) applied to a device to establish a
1. A functional unit that performs a single function, such as an oscillator.
2. A functional unit that may be configured to perform one of several functions, such as a digital
1. A storage area for data that is used to compensate for a speed difference, when transferring
2. A portion of memory set aside to store data, often before it is sent to an external device or as
3. An amplifier used to lower the output impedance of a system.
1. A named connection of nets. Bundling nets together in a bus makes it easier to route nets
2. A set of signals performing a common function and carrying similar data. Typically represented
3. One or more conductors that serve as a common connection for a group of related devices.
loss); it is sometimes represented more specifically as, for example, full width at half maximum.
reference level to operate the device.
PSoC block or an analog PSoC block.
data from one device to another. Usually refers to an area reserved for IO operations, into
which data is read, or from which data is written.
it is received from an external device.
with similar routing patterns.
using vector notation; for example, address[7:0].
CY8C9540A, CY8C9560A
CY8C9520A
Page 26 of 32
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