Features:
◆ True Dual-Ported memory cells which allow simultaneous
access of the same memory location
◆ High-speed access
– Commercial: 15/20/25/35/55ns (max.)
– Industrial: 15/20/35ns (max.)
◆ Low-power operation
– IDT70V27S
Active: 500mW (typ.)
Standby: 3.3mW (typ.)
– IDT70V27L
Active: 500mW (typ.)
Standby: 660μW (typ.)
◆ Separate upper-byte and lower-byte control for bus
matching capability
◆ On-chip port arbitration logic
◆ Dual chip enables allow for depth expansion without
external logic
◆ IDT70V27 easily expands data bus width to 32 bits or more
using the Master/Slave select when cascading more than
one device
◆ M/S = VIH for BUSY output flag on Master,
M/S = VIL for BUSY input on Slave
◆ Busy and Interrupt Flags
◆ Full on-chip hardware support of semaphore signaling
between ports
◆ Fully asynchronous operation from either port
◆ LVTTL-compatible, single 3.3V (±0.3V) power supply
◆ Available in 100-pin Thin Quad Flatpack (TQFP)
◆ Industrial temperature range (-40°C to +85°C) is available
for selected speeds
◆ Green parts available, see ordering information